Which equation represents a proportional relationship that has a constant of proportionality equal to 4/5

In the diagram, the measure of angle 9 is 85° which angle must also measure 85°?

Asocial networking site currently has 400,000 active members, and that figure is predicted to increase by 32% each year. the following expression represents the number of active members on the site after t years.

X-intercept=-5 y-intercept=2 the equation of the line is