Directions: Calculate the following simple interest problems. Write your answers in the space provided. Use the formula I = PxRxT and round your answers to the nearest cent or the
nearest tenth of a percent. Use four decimal places for fractions of time.
(a) I = ?, P = $500, R = 8%, T = 3 months (3/12)
simple interest: $
(b) I = ?, P = $50, R = 12%, T = 1 month (1/12)
simple interest:
cents
(C) I = ?, P = $1,000, R = 18%, T = 24 months (24/12)
simple interest: s
(d) I = ?, P = $600, R = 15%, T = 60 days (60/360)
simple interest: s
(use .1667)

Trinity trucking signs a contract with olsen oil to purchase all of the fuel for its fleet of trucks for the next year from olsen at a price of $3.00 per gallon. at the time trinity and olsen sign the contract, the market price for gasoline was $3.25 per gallon, and trinity had an expert report predicting that the price would rise to at least $4.25 per gallon in the upcoming six months. instead, the price dropped to $2.00 per gallon. may trinity rescind the contract with olsen due to its mistaken belief about the future of the price of gasoline?

Who is better at multi-tasking? in business, employees are often asked to perform a complex task when their atten-tion is divided (i.e., multi-tasking). human factors (may 2014) published a study designed to determine whether video game players are better than non–video game play-ers at multi-tasking. each in a sample of 60 college stu-dents was classified as a video game player or a non-player. participants entered a street crossing simulator and were asked to cross a busy street at an unsigned intersec-tion. the simulator was designed to have cars traveling at various high rates of speed in both directions. during the crossing, the students also performed a memory task as a distraction. two variables were measured for each student: (1) a street crossing performance score (measured out of 100 points) and (2) a memory task score (measured out of 20 points). the researchers found no differences in either the street crossing performance or memory task score of video game players and non-gamers. “these results,” say the researchers, “suggest that action video game players [and non-gamers] are equally susceptible to the costs of dividing attention in a complex task”

Acompany that makes shopping carts for supermarkets and other stores recently purchased some new equipment that reduces the labor content of the jobs needed to produce the shopping carts. prior to buying the new equipment, the company used 6 workers, who produced an average of 79 carts per hour. workers receive $16 per hour, and machine coast was $49 per hour. with the new equipment, it was possible to transfer one of the workers to another department, and equipment cost increased by $11 per hour while output increased by four carts per hour. a) compute the multifactor productivity (mfp) (labor plus equipment) under the prior to buying the new equipment. the mfp (carts/$) = (round to 4 decimal places). b) compute the productivity changes between the prior to and after buying the new equipment. the productivity growth = % (round to 2 decimal places)