What must be added to 3x -7 to make x2 + 4x -1?

Arandom number generator is used to model the patterns of animals in the wild this type of study is called

Which of the following is the shape of a cross section of the figure shown below

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?