Answer:
Monthly cost of cell phone for 0 minutes is $19.95 and for 40 minutes of talk is $21.95.
It means that average rate of change ( increase of monthly cost for each minute of talk time ) is: ARC = ( 21.95 - 19.95 ) / ( 40 - 0 ) = 2.00 / 40 = $0.05.
Answer:
y=3x+5
Step-by-step explanation:
He starts out with 5 pages already written then every hour after that he writes 3 more so plug in any amount of hours in for x and you will find how many pages he's written plus the 5 that he started out with.
I'm not 100% sure, but I believe the answer is A. x²-5/4x+1
Answer:

Step-by-step explanation:
it is given in question that
sample space n=34
μ the population mean =120
the sample mean 
the population standard deviation σ=20
we have to find the null hypothesis and alternative hypothesis
null hypothesis
the average braking distance for a small car travelling at 65 miles per hour equals to 120 feet
so 
Alternative hypothesis
the average braking distance for a small car travelling at 65 miles per hour not equals to 120 feet
so 