Answer:
11
Step-by-step explanation:
You will move the 7 to 18 but bc there is a equal sign you will change the positive sign to negative and just solve -7 plus 18 you will get 11 and that’s b
18 = 7/b
18b=7
b=7/18
78
11 + x = 89 Subtract 11
11 - 11 + x = 89 -11
x = 78
9.95 + 0.30s = C
9.95
9.95 + 10.5 = C
C = 20.45
hope this helps!
~LEAN~
