Write an explicit rule for the sequence 12, 8, 4, 0? A. an = -4n + 12
B. an = 4n + 12
C. an= -4n + 16
D. an= 4n + 16

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?

Use sigma notation to represent the following series for 9 terms.

Percy rides his bike 11.2 miles in 1.4 hours at a constant rate. write an equation to represent the proportional relationship between the number of hours percy rides, x, and the distance in miles, y, that he travels.