The number of hours required to do a painting job is represented by the function f(x)=2/x, where f(x) gives the number of hours and x is the number of painters doing the job. how much time will {4, 10, 14, 16, 18} workers take to do the job?
a.{1.0, 0.9, 0.8, 0.7 0.2}
b.{0.9, 0.8, 0.6, 0.4, 0.1}
c.{0.9, 0.84, 0.73, 0.59, 0.2}
d.{0.5. 0.2, 0.14, 0.125, 0.11}

Complete the standard form of the equation that represents the quadratic relationship displayed above, where a, b, and c are rational numbers.

The number of chocolate chips in an 18-ounce bag of chocolate chip cookies is approximately normally distributed with a mean of 1252 chips and standard deviation 129 chips. (a) what is the probability that a randomly selected bag contains between 1100 and 1500 chocolate chips, inclusive? (b) what is the probability that a randomly selected bag contains fewer than 1125 chocolate chips? (c) what proportion of bags contains more than 1225 chocolate chips? (d) what is the percentile rank of a bag that contains 1425 chocolate chips?

In the diagram, a building cast a 35-ft shadow and a flagpole casts an 8-ft shadow. if the the flagpole is 18 ft tall, how tall is the building? round the the nearest tenth.