Alawn is in the shape of a trapezoid with a height of 60 feet and bases of 70 feet and 130 feet. how many whole bags of lawn fertilizer must be purchased to cover the lawn if each bag covers 4000 square feet?

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?