My question is: Three companies, A, B, and C, each purchased 10 ad spaces on a newspaper, with each ad space having a size of 12 foot by 5-foot rectangle. If each square foot ad was charged at $60, how much money did the three pay for the ads combined? Your thoughts:
A size 12 foot by 5 - foot rectangle ad takes 12 * 5 = 60 square feet since the area of a rectangle is l * w. If each company bought 10 ad spaces, the total area that their ads took is 60 * 10 = 600 square feet. If each square foot of ad space was charged at $60, 600 square feet of ads cost $60 * 600 = $36000. If all three companies each purchased an equal number of ad space, together they paid $36000 * 3 = $108000. The final answer: 108000.