Answer:
See below
Step-by-step explanation:
She combined 3x and - 9x incorrectly
she should have gotten - 6 x not - 12 x
6/15 and 12/18 are ratios of 2/3
Step-by-step explanation:
A.C
B.2w + 2(w + 3) = 72
2w + 2w + 6 = 72
4w + 6 = 72
4w = 72 - 6
4w = 66
w = 16.5
Answer: First one is B second one just make it
Step-by-step explanation:
Answer:
5 x 10^7
Step-by-step explanation:
(5 x 10^4)·(1 x 10³) = 5 x 10^7 = 50 million
