Question

The expression ___

a.5x3r +10
b. 5(3r - 10)
c. 5(r - 3) x 10
d. 5(10 - 3r)
means the product of 5 and the difference of three times r minus 10. If r = 4, the value of the expression is __

Answer 1

B.

if you plug it in your answer would be 10