The art club at school is painting a mural using their school colors. blue paint comes in a 5-ounce container costing $2 per container. the containers of silver paint hold two ounces and cost $3 per container. the art club spent $56 and bought a total of 74 ounces of paint. how many containers of blue paint and how many containers of silver paint did the art club buy?

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?