I NEED ANSWER using the converse the triangle proportionality theorem determine if AB and EF are parallel lines
The answer is not 3

40 is the final : )

y = 0.77(x)

step-by-step explanation:

the jacket retains this value after 23% cut or retains 77% of original value. plug original 87 jacket price for x and the remaining value should be y.

b.-4 units

all you   do is count how many times you move

check above link.

graphically?   well, you graph them both, the solutions is where they both intersect each other, since there are two solutions, meaning they will meet twice, or namely the linear will run into the quadratic curve twice, and where they meet, those x,y coordinates are the solutions to the system.