2-55 nite time inn has a toll-free telephone number so that customers can call at any time to make a reservation. a typical call takes about 4 minutes to complete, and the time required follows an exponential distribution. find the probability that a call takes

Achemist has 200 ml of a 10% sucrose solution. she adds x ml of a 40% sucrose solution. the percent concentration, y, of the final mixture is given by the rational function: the chemist needs the concentration of the final mixture to be 30%. how many milliliters of the 40% solution should she add to the 10% solution to get this concentration?

Acar loses a quarter of its value every year. it is originally worth $35,000. to the nearest dollar,how much will the car be worth in 8 years?

Calculate the effective quarterly compound interest rate equivalent to a 1% of monthly compound interest rate.