You and a friend join different health clubs. You pay a one-time membership fee of $150 and a monthly fee of $35. Your friend pays a one-time membership fee of $100 and a monthly fee of $40. How many months would you need to go to make your membership plan the better deal?

Lin is writing an equation to model the proportional relationship between y, the total cost in dollars of downloading videos from a website, and x, the number of videos downloaded. she knows that the total cost to download 3 videos was $12. her work to find the equation is shown below. joylin’s work step 1 k= 3/12= 0.25 step 2 y= 0.25x where did joylin make her first error?