PLEASE HELP!! would this be symmetric or reflexive property?

Given a(-12,5) and b(12,29) find the point that divides the line segment ab three-eighths of the way from a to b

Aboat costs 19200 and decreases in value by 12% per year. how much will it cost in 5 years

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?