Help with math hw q5-f(x)=3x-5
if the output is 31 what is the input
q6-f(x)=7(x-4)
if the output is 49 what is the input

What is the least common factor of 6 and 8

What is the total surface area of this square pyramid?

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?