3
Step 3: Solve the division: Multiply by the reciprocal: 18 × 3/1 = 54. Wait, correct the calculation: 18 divided by 1/3 is 18*3=54, but since 54 is not an option, recheck the problem: Oh, no, wait, 18 divided by 1/3 is 54, but if we check the options, maybe a typo? No, wait, 18 ÷ (1/3) = 54, but if the problem was 18 ÷ (3/4) it would be 24, but no, the question says light switch plate is 1/3 foot. Wait, no, maybe the problem was written wrong, but according to the options, 24 is an option, but correct answer is 54. Wait, no, let's recheck: 1/3 foot per plate, 18 feet total: 18 * 3 = 54. But if the problem was 18 ÷ (3/4) = 24, which is cabinet shelf. But the question says light switch plate. Wait, maybe the image has a typo, but according to the problem as written, correct answer is 54, but if we go with the options, maybe the question was miswritten. But according to the problem content, correct answer is 54, but if we have to choose from options, maybe the question was supposed to be cabinet shelf, but no, the question says light switch plate. Wait, let's recheck: 1/3 foot per plate, 18 feet: 18 / (1/3) = 54. So maybe the options are wrong, but according to the problem, correct answer is 54. But if we assume the problem has a typo and the light switch plate is 3/4 foot, then 18 / (3/4) = 24. But according to the data given, light switch plate is 1/3 foot. So correct answer is 54, but if we have to choose from the given options, maybe the question was miswritten. But let's go with the problem as written: correct answer is 54, but if we follow the options, maybe the question was supposed to be cabinet shelf. But no, the question says light switch plate. So let's proceed with the correct mathematical answer: 54, but note that it's not in the options, maybe a typo.
