What number replaces the ◊?
8 + 5 = 4 + 9
8 + 5 + ◊ = 4 + 9 + 1

The volume of a sphere is increased by 6%. calculate the corresponding percentage increased in it area.

Melanie is buying a bathing suit that costs 39.99. she is given a discount at the cash register of $6.00 when she scratched 15% off on a game piece for a store promotion. what will the sale price of melanie’s bathing suit be?

Luke wants to reduce the area of his rectangular garden by 1/4 the expression 14/w can be used to represent this change. what is another way to write this expression?