Answer:
99
Step-by-step explanation: 9*11=99
Step-by-step explanation:
A sheet of paper which is 9" long and 11" wide has an area of (9")(11"), or 99 sq inches. This translates into 99 1-inch squares of paper that can be cut from that one sheet of paper.
9/20
10x + 21
5x + 2x-9 + 3x + 30 = 10x + 21