Answer:
The slope of the line is 2.
This means that Jan runs 2 laps every 1 minute.
Answer:
390
Step-by-step explanation:
They should still be 280 miles apart on the map i belive.
The first evening she received x calls.
The second evening she received 7 fewer calls than the first evening, so she received x-7 calls.
The third evening she received 3 times as many calls as the first evening, so she received 3x calls.
Over the three evenings she received 73 calls altogether.

The first evening she received 16 calls, the second evening she received 9 calls, the third evening she received 48 calls.
Answer:
H0: mu = 5
Ha: mu > 5
Step-by-step explanation:
A null hypothesis is a statement from a population parameter which is either rejected or accepted (fail to reject) upon testing.
It is expressed using the equality sign.
An alternate hypothesis is also a statement from a population parameter which negates the null hypothesis and is accepted if the null hypothesis is rejected.
It is expressed using any of the inequality signs.