Finding the missing length

Is it true or false i’m trying to pass this test so i can leave school

For what values of the variable x is the expression square root of 7x+14+ square root of 7-x a real number?

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=