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Divide both sides by $30.00. 19 -8 = 19 -12 =7 Substitute s into (19-s). The company installed window film on 12 four-door sedans and 7 two-door coupes. Concept Check Find the total piecework pay. (From Example 1) 1. $3.20 per item, 140 items produced $0.15 per item, 1,494 items produced Complete the problems by writing and solving an algebraic equation. (From Example 2) 3. Copy Center charges $0.08 a page for machine-fed copies and $0.20 per page for hand-fed copies. If Logan's bill for 80 copies of his movie script is $13.00, how many copies of each type were made? 4. Mary Tuttle owns a carpet-cleaning business. She charges $67.95 for a two-bedroom house and $82.25 for a three-bedroom house. Last month, the company had gross receipts of $4,413.00 for cleaning carpet in 8 more three-bedroom houses than two-bedroom houses. How many of each type did the company clean? Q Search