Solve the equation for x, in simplest form. x + 3/8 = 1/4

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?

If f(x) = 2x + 8 and g(x) = x4, what is (gº)?

Find the distance between (7,-6) and (-3,-9)