13. A cafe offers senior citizens a 15% discount off its regular price of $8.95 for the dinner buffet.
a. What percent of the regular price is the price for senior citizens?1.3425. b. What is the price for senior citizens?

Ineed with math stuff it involves graphs

Given the system of equations presented here: 2x + 4y = 14 4x + y = 20 which of the following actions creates an equivalent system such that, when combined with the other equation, one of the variables is eliminated? multiply the second equation by â’4 to get â’16x â’ 4y = â’80 multiply the second equation by â’1 to get â’4x â’ y = â’20 multiply the first equation by 2 to get 4x + 8y = 28 multiply the first equation by â’1 to get â’2x â’ 4y = â’14

According to the general equation for conditional probability if p(anb)=3/7 and p(b)=7/8 what is p(a i b)