Devin started the work shown to solve for the unknown angle measures.

8x – 1 + 9x – 6 = 180
17x – 7 = 180
17x = 187
What are the measures of angles Q and R?

m∠Q =
°

m∠R =
°

Mr and mrs smith buy tickets for themselves and their four children. the cost of an adult ticket is ? 6 more than the adult ticket. the total cost of the six tickets is ? 40.50 work out the cost of an adult ticket. in your working let c be the cost of the child ticket and a be the cost of the adult ticket.

Julie goes to the sports store and spends $40.50 before tax. she buys a pair of shorts for $21.75 and 3 pairs of socks that each cost the same amount. how much does each pair of socks cost? $$

Gabrielle's age is two times mikhail's age. the sum of their ages is 84. what is mikhail's age?