2 Do Marc buys three magazines for $7.50 at a school fundraiser. If all magizines in the fundraiser cost the same, what is the constant of proportionality in this situation? A: 2
B: 2.5
C: 3
D: 7.5​

y=-2.5x+12.5

step-by-step explanation:

5y=2x+10

y=0.4x+2

slope=-2.5

5=-2.5*3+b

b=12.5

pls refer ro the top for answer

answer: it is a.,b.,d.

step-by-step explanation:

the given 6 = w/p is equivalent to 6p = w, where w is the total area of the walls and p is the area covered by a single can of paint.

knowing that 6 cans of paint will be needed, 6p = w becomes 6(6) = w = 36.   this tells us that the total area to be painted is 36 square units.