Question

Evaluate each expression if a=3 and b=4

Answer 1

MMK so saying that a=3 and b=4 means substitute the letters, with the numbers. I'm not gonna do it for you but ill help you out a bit. 
5.    2(3)+8=
8.    7(3) x 9(4)=
11.   3^2 + 1=
14.   (3)(4)/3=

I think you can do the rest on ur own my friend. Hope this helped :)   

Answer 2

5). 14
8). 756
11). 10
14). 4