Answer:
4. B. 7
5. 30
Step-by-step explanation:
4. The perimeter is the sum of the side lengths:
29 = (x+5) +(2x -3) +(x -1) = 4x +1
28 = 4x . . . . subtract 1
7 = x . . . . . . divide by 4
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5. Add 18 to both sides of the equation.
9x -11 +18 = 12 +18
9x +7 = 30
