The length of a path from a picnic area to the playground is 34 mile. The path has signs with arrows pointing to the playground every 18 mile. How many signs are placed along the path, assuming that there is a sign at the beginning of the path but not at the end?

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?