Answer:
b
Step-by-step explanation:
I did it
let's set up an equation:
x-4=9
solve normally:
x=13
7(x+2) = 35
Use the distributive property:
7x + 14 = 35
Subtract 14 from each side:
7x = 21
Divide both sides by 7:
x = 21 / 7
X = 3
The answer is C. 3
the light bulb uses 8100 total watts
