Answer:
D. 24 watts
Step-by-step explanation:
When no parts are being manufactured, there is 0 hours of manufacturing. This means that x is 0. Plug this into the given equation and solve for y to find the amount of electricity expended.
y = 12x + 24
y = 12(0) + 24
y = 0 + 24
y = 24
24 watts of was used.
