Answer:
-15.
Step-by-step explanation:
Substituting the given values for a and b:
= 10*-2 - (10/-2)
= -20 - (-5)
= -20 + 5
= -15.
It's C.152.068
That's the right answer alright! Not because I copied or anything like that but because if you do 56.02-4.6 on a calculator and then add 100.648 you will get the right answer That's how I got my answer :P