Kent started saving for retirement at age 35 with plans to retire at age 70. he invested an average of $600 per month in various securities, with an average annual return of 5% adjusted for inflation. assuming monthly compounding, how much has kent saved at the start of retirement?

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?