Answer:
The average rate of change is 
Step-by-step explanation:
Given function that shows the population of a culture of cells,

Where, t represents the number of weeks.
Thus, the average rate of change in the population over the interval [0,24],

From equation (1),





13/15 - 1/3 Find a common denominator
1/3 x 5= 5/15
13/15 - 5/15 = 8/15
11% of 80 is 0.11*80=8.8
80-8.8=71.2
Answer B
In order to find CPU (Cost per unit) we must take the cost, and divide it by the number of units.
So,

Since we are talking about money, it is implied to round to the nearest cent, so the final answer is
$3.44