Johnson uses a statistics program to analyze all the data collected by her students during a lab experiment about the acceleration due to gravity. the program reports a mean of 31.5 and a standard deviation of 2.5. what is the variance of the data?

Solve the system of equations. y= 2x y= x^2 - 15

Kevin is an insurance salesman. when he sells a policy, he makes 20 percent of the policy premium (p) up front; then each year the policy is active, he receives 15 percent of the original premium. which equation could be used to figure his total commission on a policy that has been active for five years? c=0.80p c=0.20p + 0.15p c=0.35p + 4(0.15) c=0.95p

Rosy waxes 2/3 of her car with 1/4 bottle of car wax.at this rate,what fraction of the bottle of car wax will rosey use to wax her entire car