Answer:
it's a
Step-by-step explanation:
Answer:
Jess used 40 blocks in total.
Step-by-step explanation:
First stack: 8 blocks
Second stack: First stack + 4 = 8 + 4 = 12 blocks
Third stack: Second stack + 8 = 12 + 8 = 20 blocks
Total number of blocks: First stack + Second stack + Third stack = 8 + 12 + 20 = 40 blocks
Using the formula a(b+c) = ab + ac, then 7(2x-6) = 14x - 42. The answer is D.
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Answer:
mean
Step-by-step explanation: