Answer:
c
Step-by-step explanation:
Answer:
15
Step-by-step explanation:
Let's call the mystery number x.

Hope this helps!
Answer:
Step-by-step explanation:

X × .60 = answer
%60X = answer
Answer:
5
Step-by-step explanation:
5(a+3)=40
5a+15=40
5a+15-15=40-15
5a=25
a=5