Answer:
9 t-shirts
Step-by-step explanation:
Well if she made a profit of $30 that would mean that you would subtract $84-$30 which would give you $54. Than you would divide 54/6 to find how much t-shirts she sold.
-Hope this helped (this is one of the first questions ive answered )
y=1
x=-2
You're given one, so solve for y by entering -2 (x) into it's equation.
y=x+3
y=-2+3
y=-1
The other is given, so you have your answer.
:)