What is the recursive formula of: 1,4,64,256

40 describe the outliers from the scatter plot.

The two square pyramids are similar. find the total volume of both pyramids if the ratio of their surface areas is 9/16

I'm at a bookstore with $\$35$ in my pocket and a $20\%$-off coupon. what is the cost of the most expensive book i can buy with my money and the coupon? (assume that there are books of every possible price in the bookstore. it's a large bookstore! )