Question

If y is 12 less than the product of a and b, then which of the following is an expression for y in terms of a and b ?

12 − (a + b)

(a + b) − 12

12 − ab

a/b − 12

ab − 12

Answer 1

Answer: ab -12

Given that y is 12 less than the product of a and b.

The product of a and b is the multiplication of a and b:
a x b = ab

12 less than the product will mean that we need to take away 12 from ab, so
y = ab - 12

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Answer: ab - 12
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