Please help me thanks please

Hi my sisters and brothers can tell me the answer because i don’t understand the question

Solve the equation -9p - 17 =10 a -3 b. 16 c. 18 d -16

The revenue each season from tickets at the theme park is represented by t(c)=5x. the cost to pay the employees each season is represented by r(x)=(1.5)^x. examine the graph of the combined function for total profit and estimate the profit after four seasons