The part (10 + c) represents a sum because a sum is the result of an addition expression/equation, you only need to find the part of the expression that uses addition.
I hope this helps you
6x-2x-8=12x
4x-8=12x
8x=-8
x=-1
Answer: division
2 / 5 = 0.4
so 0.4 is 2/5 as a decimal
Answer: 28%
Step-by-step explanation:
23.04 - 18 = 5.04
5.04 is 28% of 18
2
(6)x2 =12
(5)x2 =10
12-10=2