Respuesta :

bcalle
18. 2(x + 26) = 264
x = $106

20. (9/5)C + 32 = F
(9/5)(-35) + 32 = F
-63 + 32 = -31 degrees F

22. 73 = 2x + 11, x = the original number of customers
x = 31 original customers

24. 8x + 19 = 115
x = 12 days