Farmer fran has some cows and some hens. between them, they have 52 legs and 38 eyes. how many hens does farmer fran have? how many cows does farmer fran have?

1. are the triangles similar and if so why? what is the value of x? show your work.

In triangle △abc, ∠abc=90°, bh is an altitude. find the missing lengths. ah=4 and hc=1, find bh.

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?