CPM Homework Help : CC2 Problem 5-124

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5-124.

Evaluate each expression.

$\frac{1}{2}(5+13)−4·5$
Hint (a):
Follow the Order of Operations.
More Help (a):
First, simplify the terms in parentheses, then exponents, the terms that are multiplied or divided, and finally the terms that are added or subtracted.
Answer (a):
$-11$

$(5+11)-(24-15)·(3)$
Hint (b):
See part (a).

$6^2+3·7−9\div3$
Hint (c):
See part (a).
Answer (c):
$54$

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