Chile- please help
-a +8<-2 OR-3a>-9

Which of the following expressions is equal to 2x^2+8

Ten times the square of a non-zero number is eqaul to ninety times the number

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?