Answer:
Step-by-step explanation:
its B
just chuck it in wolfram alpha
Since is addition you do the opposite and subtract 12 from 12 and -5 then 12 cancels out and -5-12=-17
25 feet = 25 x 12 = 300 inches
First light is at 16 inches.
300 - 16 = 284 inches
Find the rest of the bulbs:
284 ÷ 4 = 71
Total number of lights = 71 + 1 = 72
Answer 72 lights
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