Answer:
The expression is 4x² and coefficient is 4.
Step-by-step explanation:
All have the same variables, x², so you add up together :


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
I'm not sure what the question is but I think your asking 150-85=65
Answer:
False
Step-by-step explanation:
It is not proportional because the distance does increase with the same amount with time.
if Proportional , this would be the tabel
Time distance
1 4
2 5.5
3 7
4 8.5
5 10
An Easy Way to do this is to write out the sample space.
5 10
5 25
10 5
10 25
25 5
25 10
Then, check which ones, add to over 20
5 25
10 25
25 5
25 10
Therefore, it's 4/6 or 2/3