If = a27° and x = 9 cm, what is the value of y to the nearest tenth of a centimeter? 18.8 cm 10.1 cm 19.8 cm 17.7 cm

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?