The sphere on the left has radius r and a surface area equal to 115
units ^2 . Find the surface area of the
sphere with twice the radius.

Agroup of five people go out to eat and buy appetizers and main dishes they decide to split the bill so each person pays 20% of the total cost appetizers are $5 and main dishes are $10 write an expression to show how much each person pays explain it with how to solve the problem