50 minutes in total spent doing homework
Isabel’s bee rounds to 0.8 inches
Pablo’s bee rounds to 0.5 inches
Wendi’s bee rounds to 0.6 inches
Brett’s bee rounds to 0.7 inches
Growth rate = 200% each year
SO population becomes twice in each year
After 20 years, population = 5* 2^20 = 5242880
(Assuming no deaths occur)
B to the second means b * b.
The short hand for b*b is b^2 on this editor or

c to the fourth means c * c * c *c
the short hand for c*c*c*c is c^4 on this editor or

The answer you want is b^2/c^4 in the answer box.
If this is wrong and you have choices, please list them and I will edit or put the answer in a comment.