WHO WANTS TO TALK? I'M BORED

Which statement accurately describes how to perform a 90° clockwise rotation of point a (1,4) around the origin?

Frank has a devised a formula for his catering business that calculates the number of meatballs he needs to prepare. the formula is m=4a+2c, where c=number of children; m=number of meatballs; a=number of adults. how many meatballs are required for a party of 10 adults and 5 children?

Find the dimensions of the circle. area = 64π in.² r= in.