Parviz F. answered 01/28/14
Tutor
4.8
(4)
Mathematics professor at Community Colleges
I think you are supposed to evaluate variable expression, for a certain given value of the variable quantity.
i,e, Y =5
12( 5 ) =60
Y =2
12( 2) = 24
Y =125
12( 125) = 1500
Variable quantity can take multiple values, that relationship between the variable and the expression is given by equation.
Jesus J.
01/28/14