A. Write an equation to represent ghe hanger B. Solve the equation by reasoning the equation or the hanger. Explain your reasoning

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?

You buy 4 items that cost 2.69 14.45 8.05 13.95 what is the estimated total round to the nearest dollar

y=2x−1 5x−4y=1 is (1,1)(1,1) a solution of the system?