Joe ate 7 pies on wednesday. if that is only 1/4 of the world record for pie eating what is the pie record

This is fractions casey shared a pizza with some friends.they each ate 1 third of the pizza. how many people shared the pizza

Estimate the area under the curve f(x) = 16 - x^2 from x = 0 to x = 3 by using three inscribed (under the curve) rectangles. answer to the nearest integer.

Sam opened a money-market account that pays 3% simple interest. he started the account with $7,000 and made no further deposits. when he closed the account, he had earned $420 in interest. how long did he keep his account open?