1. a.- (x + 5); c. 2(3y + 7); e. 8(3a - 4b); g. -4(d - 6) 2. b. 7(p + 10q) + 2(6p + 7q); d. x + 3(2x - 3y + z) + 7z
3. Sam is x yrs old. Sam's uncle is four times as old as Sam will be in 5 yrs. Find the present age of Sam's uncle.

Atruck can be rented from company a $50 a day plus $0.60 per mile. company b charges $20 a day plus $0.80 per mile to rent the same truck. find the number of miles in a day at which the rental costs for company a and company b are the same