These are three solutions
(0,-2)
(1,3)
(2,8)
Let's call the missing side ? as shown in the problem.
Now set up a equation where everything adds up to 28x+11
?+8x+2+8x+2+5x+12=28x+11
?+21x+16=28x+11
?=28x-21x+11-16
?=7x-5
So 7x-5 is the missing side!
Hope it helps :D
Answer:
???
Step-by-step explanation:
Retail Price= $40
Price after 20% discount
20/100 x 40 = $8
40-8= $32 after discount
tax paid on $32 shirt = 5/100 x32 = $1.6
she paid $32+$1.6= $33.6