Question

What is the value of the expression 5ab−7b+c when a=3, b=3, and c=4?

13

24

28

39

Answer 1

the value of the expression is 28

Explanation:

since we have already been given the values of a, b and c ,we must substitute them in the expression like this:

5(3)(3)-7(3)+4

28

Answer 2

Answer: the value of the expression is 28

Explanation:

we simply substitute the letters in for the numbers.

5(3)(3) - 7(3) + (4)

we just multiply all of those together.

45 - 21 + 4

answer: 28