Two lines are parallel if they have the same slope but a different y intercept. A line with the same slope and y int as another one will be the exact same Slope in standard form is -a/b, so your slope is 2/3 and your y int is -3 For example: y=2/3x+1
I'm not completely sure about this answer but here is what I got: 100•15=1500 for one day of the food booth. 50•22=1100 one day for the game booth. 1500+(x9) and 1100+(x8). (1500+x)+(1100+x)=x
