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176 Chapter 3 Solving Equations 7. The data represent the number of turkey subs sold between 11:00 A.M. and 12:00 P.M. at Subs-R-Us over a 14-day period. Find the mean number of subs sold per day. 8. Find the perimeter of the lot. 40 ft For Exercises 9–14, perform the indicated operations. 9. 18 152 132 10. 4 172 8 11. 415 112 112 12. 5 23 12 3 13. 36 102 14. 16 142 3 For Exercises 15 and 16, simplify the expression. 15. 2x 14 15 3x 16. 3y 15y 62 12 For Exercises 17 and 18, solve the equation. 17. 4p 5 11 18. 91t 12 7t 2 t 15 19. Evaluate the expression a2 b for a 3 and b 5. 20. In a recent year, the recording artist Beyoncé received 2 more Grammy nominations than Taylor Swift. Together they received 18 nominations. How many nominations did each receive? 15 12 8 4 6 12 10 20 7 5 8 9 11 13 150 ft 70 ft 105 ft


miller_prealgebra_2e_ch1_3
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