Devon is 13 years old. this is 4 years younger than his older brother, Todd. Write and solve a subtraction equation to find Todd's age.

James is playing his favorite game at the arcade. after playing the game 33 times, he has 88 tokens remaining. he initially had 2020 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