Answer:
170/8
Step-by-step explanation:
the steps are in the pic
Answer:
$12 per hour
Step-by-step explanation:
In order to find her hourly rate we have to find the amount of dollars billed per hour. To do this we can use this expression: 
Let's use the points (1, 27) and (2, 39) in the expression:

Now let's simplify the expression:
39 - 27 = 12
2 - 1 = 1
The expression simplifies to 12/1, or 12. This means that Brenda is billed $12 every hour she uses her phone.
I hope this helps :)
Answer: 
Step-by-step explanation:
An null hypothesis (
) is a statement of equality which shows that there is no statistical difference between the groups being tested.
An alternative hypothesis (
) is a statement of inequality which shows that there is statistical difference between the groups being tested.
Let
be the population mean amount of garbage per bin .
Given : A sanitation supervisor is interested in testing to see if the mean amount of garbage per bin is different from 50.
i.e.
→ Alternative
Thus , the appropriate null and alternative hypotheses :

Answer:
Option A, -15
Step-by-step explanation:
<u>Step 1: Look at the function that needs to be outputted when x = -3</u>
Since x = -3, that means it falls into the first category of x ≤ -3
<u>Step 2: Carry out the instructions</u>
The function for the first category is 



Answer: Option A, -15