Write the expression as .Write the expression as 90 – a. Write the expression as a – 90. Substitute 102 in for the variable, a.Simplify by subtracting 90 from 102. Simplify by dividing 102 by 90. The answer is 1.13.The answer is 12.

evaluatesimplify✔ substitute
evaluate✔ simplifysubstitute
addingdividing✔ multiplyingsubtracting
12.2315.2✔ 36.6312.2
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