Janie inflated a ball to a radius of 18 cm and another ball to a radius of 12 cm. how much greater was the volume of air in the larger ball than the smaller ball? use 3.14 to approximate pi. round to the nearest hundredth if necessary.

Olivia uses the work below to determine 55% of 720 which explains the error in olivia’s solution

(b) suppose that consolidated power decides to use a level of significance of α = .05, and suppose a random sample of 100 temperature readings is obtained. if the sample mean of the 100 temperature readings is x⎯⎯ = 60.990, test h0 versus ha and determine whether the power plant should be shut down and the cooling system repaired. perform the hypothesis test by using a critical value and a p-value. assume σ = 5. (round your z to 2 decimal places and p-value to 4 decimal places.)

Atown has a population of 17000 and grows at 2.5% every year. to the nearest year, how long will it be until the population will reach 19600?