Answer: 
b) 75
c) $24
<u>Step-by-step explanation:</u>
the difference in the y-values (electricity) divided by the difference in the x-values (students) is the rate of change. 
Electricity = rate of change × students ⇒ 
b) Find s when E = 15

c) Find E when s = 120

Answer:
x=26
Step-by-step explanation:
The answer is A because the roller coaster is decreasing in ft.
Answer:
2 2
8abx +12ax-10ax
Step-by-step explanation:
(the twos are exponents)