Question

Roscoe rides his bike atleast 10 miles but no more than 30 miles. He rides at an average rate of 10.5 miles per hour. The amount of time it takes for roscoe to ride his bike m miles is represented by the function.
t(m)=m/10.5
What is the practical domain of the function?
A. All real numbers from 10 to 30, inclusive.
B. All multiples of 10 between 10 and 30, inclusive.
C. All real numbers.
D. All integers from 10 to 30, inclusive.

Answer 1

The domain, or the distance traveled, is all real numbers from 10 to 30, inclusive. the answer is A

Answer 2

I think the answer is D.