Bob has been alive for 21,900 days. How old is Bob?

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?

How do i put 3(x+7) in distributive property

What value is a discontinuity of x squared plus 8 x plus 4, all over x squared minus x minus 6?