Confirm that f and g are inverses by showing that f(g(x)) = x and g(f(x)) = x.
f(x) = x2 - 3 and g(x) = square root of quantity three plus x

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?

Can someone factor this fully? my friend and i have two different answers and i would like to know if either of them is right. you in advance. a^2 - b^2 + 25 + 10a

Askate shop rents roller skates as shown on the table below. which graph and function models this situation?