Mark is 15 years younger than ashley. the sum of their ages is 55. write a system of 2 equations to determine mark (m) age and ashley (a) age. i don't know how to write this into 2 equations!

Which value of c would make he following expression completely factored? 8x+cy

The appalachian trail is a hiking trail that passes through the appalachian mountains. three members of a teen hiking group hiked a section of the trail. the hikers stopped at a rest area and equally shared 3 4 gallon of water. how much water did each person get?

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=