The number of new cars purchased in a city can be modeled by the equation C = 20t^2 + 135+ + 3050, where C is the number of new cars and t = 0 corresponds to the number of new cars purchased in 1998. In what year will the number of
new cars purchased reach 15,000?

The difference between tax advoidance and tax evasion

For which pair of functions is (gof)(a)=|a|-2?

The weight of full–grown tomatoes at a farm is modeled by a normal distribution with a standard deviation of 18.4 grams. the 95 percent confidence interval for the mean weight of the tomatoes is calculated using a sample of 100 tomatoes. what is the margin of error (half the width of the confidence interval)?