Store a has a promotion. if you buy three shirts, you get 25% off the total price of the three shirts. store b has the same shirts on sale with the promotion that if you buy three shirts, you get the third shirt at a 50% discount. store c has the same shirts on sale with a 10% discount. assuming the three stores have the shirts priced equally before any promotion or sale and assuming you want to buy three shirts, which store�s promotion or sale gives you the better deal?

step-by-step explanation:

let

we know that

the y-intercept is the y-coordinate of the point when the value of x is equal to zero

so

the y-coordinate of the point a is the y-intercept

the answer part a) is

the value of y-intercept is

part b) find the slope m

we know that

the value of the slope is equal to

substitute the values

therefore

the answer part b) is

the value of the slope is equal to

the general answer is

the slope is

the value of y-intercept is

answer: the answer is simply nothing.

step-by-step explanation: because there is no ending to this question

gimme brainliest > : 3