10 -(-6) can someone solve this for me please

Which of the following tables represents exponential functions?

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

An 18% discount on a watch saved a shopper $72. find the price of the watch before the discount