What is the measure of the angle? pic added

Which problem could be  solved  by evaluating the expression  7×(−3)7×-3?

James is playing his favorite game at the arcade. after playing the game 3 times, he has 8 tokens remaining. he initially had 20 tokens, and the game costs the same number of tokens each time. the number tt of tokens james has is a function of gg, the number of games he plays

Evaluate the expression for the given value of the variable 7a - 4a for a =8