Bamboo is one of the fastest-growing plants. A typical growth rate for bamboo in temperate climates is 5 centimeters per day during the growth season. Which of the following equations, where t represents time in days, and L represents length in centimeters, could be descriptions of the growth of a bamboo plant?

A. L= 5t
B. t= 5L
C. t= 50L
D. L= 50t

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?