Lorenzo wants to know how much it will cost to rent tables and chairs for an event. He investigates renting tables and chairs and decides to use two different companies.Company A$4 per table (seats 4) and a $25 one-time delivery and pickup feeCompany B$2 per chair and a $15 one-time delivery and pickup feeEach table seats 4 people, so Lorenzo needs to rent 4 chairs for every table.x = number of tables Cost to rent tables from Company A: f(x) = 4x + 25Cost to rent chairs from Company B: g(x) = 2(4x) + 15 Which function represents the total cost for Lorenzo to rent x number of tables and the chairs he needs to go with them?
Add the table-rental cost and chair-rental cost: f(x) + g(x) = (4x + 25) + (8x + 15). Combine like terms to get 12x + 40. The total cost is therefore 12x + 40, choice C.
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