Simplify. 2(r+ 1) -r

Solve. 7x + 2x = 45

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

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?

Solve. 14k + 16k + 88 = 163

Solve. 6n + 21 = 4n + 57

The rectangle and triangle have the same perimeter. Find the perimeter of each

figure. x

X - 7

X + 9

X - 7

X + 2

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?

Solve. -9x > 108