Answer: 
Step-by-step explanation:
(a) Given
Sam charge $5 for each dog for a thirty minute walk
For an hour which is double the thirty minutes, it must be double of the same charge.
(b)Given
With $20, Christie sells 100 cups of lemonade with a quarter per cup charge
For 100 cup, she generate a revenue of
So, she earns 
that is , her profit is 
Answer:
2/1 or 2
Step-by-step explanation:
the way to find the slope is rise over run, if you count the units you see that for every time it rises 2 it runs 1, then divide.
Answer:
Step-by-step explanation:
This is your answer
The Quadratic<span> Formula uses the "a", "b", and "c" from "ax</span>2<span> + bx + c", where "a", "b", and "c" are just numbers; they are the "numerical coefficients" of the </span><span>quadratic equation. Therefore,
</span><span>f(x) = x2 – 5x + 6
a = 1
b = -5
c = 6</span>
-20 and -5
-20*-5 is 100
and -20+(-5) is -25
