Based on Data Collected During an Experiment, a Biologist Found

Multiple Choice

Based on data collected during an experiment, a biologist found that the number of fruit flies (Drosophila) with a limited food supply could be approximated by the exponential model ​ ​
Where t denotes the number of days since the beginning of the experiment. Find the average number of fruit flies in the colony in the first 10 days of the experiment and in the first 29 days.

A) 44; 53
B) 47; 50
C) 46; 51
D) 45; 52
E) 40; 57