Simplify the following expression.

-20 + (-15)

А. - 5

B. 5

C. - 35

D. 35

Explain an show me how to describe to use a tens fact to find the difference for 15-8

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To decrease an amount by 24% what single multiplier would you use

Solve. write your answer in interval notation |2x+7|+9>20

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