A rectangular playground with length 15 m and breadth 10 m needs two rounds of fencing to prevent the entry of stray animals. Find the perimeter and the cost of fencing, if the cost of
1 m of fence is ₹ 25.50.
you will get 20 points

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?