Answer:
Undefined
Step-by-step explanation:
The formula for slope is 
So use the x's and y's from the given points to solve for the slope
(10, -6) (10, -6)


The slope for this line would be undefined because a number cannot be divided by 0
Answer:
pp
Step-by-step explanation:
15 - 2m = how much she has left.
so 15 minus 2 times the cost per book will tell you how much she has left.
Change in number of seats = 144 - 111 = 33
percentage increase = 33/111 x 100 = 29.8% (nearest tenths)
I'm 30% sure it's 30 or acute anglee