Answer:
part A you have correct.
is there a 'D" for part B? A through C answers don't seem correct.
after a response from the poster, "D" was the correct answer.
re-posting it because some random person deleted it.
The triangle was just flipped so the missing side is going to equal 36, so...
2y+20= 36
(Subtract 20 from each side to isolate the 2y)
2y= 16
(Divide each side by 2 to isolate the variable)
ANSWER:
y= 8
First you need to turn this into an improper fraction. Then, using your improper fraction, you simplify
1/4 off means 0.25 * 28
7
Sale price = 28-7
= 21
I got 42.5 cuz 4x+10=180 then take away 10 from both sides so 4x=170 and you divide each side by 4
