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),





Answer:
Step-by-step explanation:
New height to initial height=
10/4=2.5
New width from initial width should be 5×2.5=12.5inches
It can be factorised as

so the solutions are
x= 10 and x = -9
so the sum of the solutions is 10 -9 which is 1