Which of the following is a a solution to the equation y=3x-1
a) (4,1)
b) (2,5)
c) (4,3)
d) (0, -3)

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.

Determine the number of girls in a math class with 87 boys if there are 25 girls for every 75 boys

I’ve been trying all day to figure this puzzle out. i need the work for it aswell. it is a factoring polynomials tarsia. the image is below.