Select all that apply. Which representations show a direct variation?

y = -2/3 x

y = 2 x + 3

Input (x) 3 6 9 12 15
Output (y) 4 8 12 16 20

33% of college students say they use credit cards because of the rewards program. you randomly select 10 college students and ask each to name the reason he or she uses credit cards. find the probability that the number of college students who say they use credit cards because of the rewards program is (a) exactly two, (b) more than two, and (c) between two and five inclusive. if convenient, use technology to find the probabilities.

Write an equation in slope intercept form of the line passes through the given point and is parallel to the graph of the given equation (0,0); y=3/8 x+2

How do i find the missing angle measure in a polygon