Answer:
13
Step-by-step explanation:
Just replace the a and b with the value given then plug it into a calculator.
Should look like 3(5)+(-2)
3(5)+(-2)
15-2
450
I used my head lol
she needs $4.52
(9.5*5.50)+x=56.77
52.25+x=56.77
x=56.77-52.25
x=4.52
