Problem
i-Ready Write and Evaluate Algebraic Expressions - Quiz - Level F \( \times \) 4) At The Ski Shack, customers can rent skis, snowboards, boots, and poles by the day. Mrs. Alvarez is renting skis and poles. She has a coupon for \( \$ 18 \) off. 4) Which expression represents the total cost for Mrs. Alvarez to rent skis for \( s \) days and poles for \( p \) days?
Solution
Step 1 ：\(\text{Total cost} = s \times C_s + p \times C_p - 18 \)
