Jake says that the solution to 8.5-a=5 is that a equals 13.5 because addition and subtraction are inverse operations and 8.5+5=13.5. Does Jake's solution make sence? Explain how you know whether or not Jake's solution makes sence without solving the equation. Then draw a model of the problem and solve then equation.

Maryann’s friends loved her bulletin board, and 4 of them asked her to make one for their homes. she offered to make each of her friends a replica of her bulletin board that measures 2 meters by 3 meters. how many kilograms of burlap should maryann collect to complete the bulletin boards for her friends? maryann should collect kg of burlap.