Answer:
r = -4
Step-by-step explanation:
2r + 7 = - 1
2r = - 1 - 7
2r = - 8
Answer: r=-4
Step-by-step explanation: -3(2r + 7)=3 (−3)(2r)+(−3)(7)=3 −6r+−21=3 −6r−21+21=3+21 -6r/-6=24/-6 r=-4
the perimeter of the Pentagon is 2.75cm
add each side together in decimal form
0.0069
6.9 move the decimal 3 places to the left
