Answer:
Tip= $25
Step-by-step explanation:
<u>First, we need to round the bill to the nearest tenth.</u>
Bill= 47.84 = 50
<u>Now, we can calculate the tip using the following formula:</u>
Bill proportion= 50% = 0.5
Tip= Bill*tip proportion
Tip= 50*0.5
Tip= $25
On a $50 bill, the tip is $25. The total amount to pay is $75.
I think 71 is B
and 72 is D.
Answer:

Step-by-step explanation:
Given the equation

Note that

and

Combined, 
Solve the equation:

Since
this is the solution to the equation.
The average temperature increased from day 5 through day 7.
answer choice b is the correct answer.
if you look at the chart you see how the temp. increases throughout said days. :)