Answer:
9.45
Step-by-step explanation:
2.70*3 = 8.10
8.10 + 1.35= 9.45
I took the test, Here is a screenshot of the review
6x+30
Multiply 6 by x and 6 by 5, or x 6 times and 5 6 times
2w+2(2w-7)
the first 2w is the length of the two widths, and the (2w-7) is the length of the length, and we multiply by two because there are two sides.
x=-4
x+(-3)=-7
x-3=-7
x=-7+3=3-7