Find the value of z and the measures of the angles? Answer in
order of z first, then the angles in order, MZA=
(142 – 7)
mZB=
c
(82)
mZC=
MZD=1
(10z)

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?