Sporting Initiation Ideas Can Someone Start Me On The Right Track To Solve This Question?

Can someone start me on the right track to solve this question? - sporting initiation ideas

Imposes a sports club initiation fee and a monthly fee. After 5 months, a member of a total of $ 170 has to pay, and after 10 months, he had to pay a total of $ 295. What are the costs for the introduction?

I know that the answer is $ 45, but I will show my work with a board. Can someone tell me how to organize on the table? I do not remember the last year.