Math
posted by Jerald .
Evaluate each expression if x=5.07 y=1.5 and z= 0.403
7.3.2x+y
16.224

yz+x
0.6552 
I think you may have a typo in your first problem.
Here's what I get for the second.
yz+x
(1.5 * 0.403) + 5.07 =
0.6045 + 5.07 = 5.6745 
oh I thought I had to multiply yz for second problem

Yes. I multiplied y times z. We use * to mean multiply.