Well, first off let's check what is the slope of y = 2/3x+1.... .hmmmmm, notice

, since the equation is already in slope-intercept form, we can see it has a slope of 2/3.
well then, a line perpendicular to that one, will have a negative reciprocal to it.

so, we're really looking for the equation of a line whose slope is -3/2 and goes through 12, -6.
Answer:
7
Step-by-step explanation:
3 - (-4) = 7
You divide you total tickets by 2. so you would take 20 and divide it by 2= $10 for 20 tickets. So the rule is divide the total number of tickets by 2.