Idk i can't see that, sorry
7^4 or seven to the fourth power because 7 is being multiplied by 7 when you raise it to a power.
13
He has $170 minus the $25.50 fee= $144.50 left. If each session is $10.50, then divide 144.50 by $10.50 and you get 13.76. He will have enough for 13 help sessions
