You just find out what the missing variable is by subtracting 88 from 107 on the first one. You do the same for the last too as-well, but just insert the numbers that they say.
Happy Friday!!
Answer:
x should be 1
I think if you substitute it will just be the index 2 that remains , not sure though .You should probably ask your teacher for assistance
A. The independent variable is time, as time is manipulating the value of her salary.
b. The dependent variable is her cost because what she charges for babysitting depends on how long she works.
c. y = 8x
y = how much she charges for this job
8 = the amount she charges per hour
x = number of hours babysat
The answer for your question is B
Answer:
Step-by-step explanation:
We can add 9 to both sides of the equation to get 
.
We can divide both sides of the equation by 21 to get 
.
We take the square root of both sides of the equation to get 
.
However, that isn't in the form we need.
We know that 
so the answer is really and we're done!
