Membership for the alpine rock-climbing gym costs $25 per month plus a $125 sign-up fee. membership for rocco’s rock-climbing gym costs $30 per month plus a $50 sign-up fee. a. after how many months will the memberships cost the same? b. if you only wanted a one-year membership, which gym would you join to pay the least amount of money?

How do i do this activity, is appreciated

Me with this one question, and i'll upvote the brainliest answer

Suppose you are an avid reader and are looking to save money on the cost of books instead of paying about $20 for each book, you decide to look into purchasing a kindle for $120 you can purchase e-books for about $5 each 1. find the slope-intercept equation for the cost of the hard copy of books using x to represent the number of books 2. find the slope-intercept equation for the cost of the kindle with cost of e-books using x to represent the number of books