Answer:
x = 12
Step-by-step explanation:
15 + x = 27
subtract 15 from each side of the equation:
15 - 15 + x = 27 - 15
x = 12
His answer is not reasonable because the decimal is misplaced. The actually answer is 21.5564, all he did was move the decimal place over.
I think the answer its 42.91
Answer:
D 826.80
Step-by-step explanation: