marks grandparents deposited 1200 into an account when he was born . how much interest will the account have earned in 18 years at a 1.5 simple interest rate

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 t of tokens james has is a function of g, the number of games he plays. write the function’s formula? t=