He ages of mark and adam add up to 28 years total. mark is 20 years older than adam. how many years old is adam

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

What can you determine about the solutions of this system

Ineed with number 6 , explain how to get 1978