1. Simplify. 2(r+ 1) -r

2. Solve. 7x + 2x = 45

3. Solve. t/4 + t/3 = 7/12

4. Antonio’s first four test grades were 85, 92, 91, and 80. What must he score on his next test to have an 88 average?

5. Solve. 14k + 16k + 88 = 163

6. Solve. 6n + 21 = 4n + 57

7. The rectangle and triangle have the same perimeter. Find the perimeter of each figure. x X - 7 X + 9 X - 7 X + 2

8. A bill in the US House of Representatives passed because at least 2/3 of the members present voted in favor of it. If the bill received 284 votes, at least how many members of the House of Representatives were present for the vote?

9. Solve. -9x > 108