Answer: the answer is A
Step-by-step explanation:
Jus took the quiz

Substitute x = 3 in any given equations. I will do in y = - x + 1

Therefore the answer is (3,-2)
If C stands for cups, solve for C
48 - 2c = 0
l
subtract 48 from each side.
l
2c=-48
l
divide 48 by 2 ---> 24.