For every 5 books her students read, mrs. fenway gives them a free homework pass for 4 days. juan has accumulated homework passes for 12 days so far. what proportion would you write to find how many books juan has read?
5/12 = 4/x
4/12 = x/5
4/5 = 12/x
4/5 = x/12

(urgent ) use pi 3.14 to estimate the circumference of the circle to the nearest hundredth middle is 4in (urgent )

Aregular pentagon with a perimeter of 21 inches is dilated by a scale factor of 5/3 to create a new pentagon. what is the perimeter of the new pentagon?

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?