Then the original price was $42
Because it is half off we multiply 21 by 2 and get 42.
What are you trying to solve for? Area, perimeter, volume?<span />
The answer is option 4, (-1,2)
Answer: -43/20
Step-by-step explanation: you just need a college calculator to solve ,you need to just plug the numbers and it will do it for you.
Answer:
is this a joke? xd. 2+2=4.