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

y=x+ 4/5

y= 4/5x

xy=4/5

x+y=4/5

The number of 8th graders who responded to a poll of 6th grade and 8 th graders was one fourtg of the number of 6th graders whi responded if a total of 100 students responddd to the poll how many of the students responded were 6 th graders

If value of cos330° is √3/2 then find tan165°.

Which of the following statements are true about the graph of f (x) = 1/4 coz ( x + π/3) - 1? select two of the following that apply.