Answer:
Top left graph.
Graph W.
Step-by-step explanation:
Used a graphing calc.
So remember the rule from negative exponents to fractions is: 
. Note that it is only the y exponent with the negative exponent, not 5, so our fraction would look like this: 
.
In short, the correct answer is the third option: 5/y^3.
Answer:
$20.45
Step-by-step explanation:
First substitute 35 for s
9.95+0.30(35)=c<-----
If you solve this you would get...
$20.45
Start with the last two choices.
You have x + 5 and x - 5 in the square root.
A square root can never be negative.
That means that the lowest value y can have in the last two choices is 0.
The range does not include -4.
Now look at choice B.
sqrt(x) is at least 0.
Then you add 5.
The range does not include -4.
Now look at choice A.
sqrt(x) is at least 0.
Now you subtract 5.
The lowest value y can have is -5. That includes -4.
Choice A is the answer.
y will be at least 5.
