7x+(x-4)(X+5)-5x
7x+(X*2+ 5x-4x-20)-5x
7x+(X*2+ x-20)-5x
X*2+3x-20
A. 12% discount, or, $7.44 discount
B. The sale price is $54.56
AB is the large segment.
AM is half of the large segment.
MB is the second half of the large segment.
AM = MB is true.
Segment AM is congruent to segment MB is true.
AB = MB is false.
Answer: x=6
He subtracted both x’s in the education first, when he should have had added 6 to both sides first.
Step-by-step explanation: