Answer:
c) 9
Step-by-step explanation:
4x - 2 + 30 = 64
4x + 28 = 64
4x = 64 - 28
4x = 36
x = 36/4
x = 9
519
hope this helped you
:)
First one is 2.5
7+7=14
21-14=7
7/2=3.5
3.5-1=2.5