Thomas bought a new backpack that was 30 off the original price. The sale resulted in a $15 discount. What was the original price of the backpack?

It says factor each expression 49x-28?

Which of the choices shown could be used to prove that aacp=abcp ?

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?