Answer
27 - R = C
if she rented 16 of them then
27 - 16 = C And C = 11
8.77 x 10^1 i believe but would double check
If I understood correctly and didn't make any mistakes...
The change, from the predicted data to the actual data, in the average number of downloads of the application for Company A from the day the application was launched to 4 days after the application was launched would decrease by approximately 244 downloads per day.
The change, from the predicted data to the actual data, in the average number of downloads of the application for Company B from the day the application was launched to 4 days after the application was launched would increase by approximately 174 downloads per day.
Based on this information, Company B made a more accurate prediction of the average number of downloads of the application per day.
Your answer is b because the common denominator is 10 and so just look at my pic
