David drives 67.5 miles in 45 minutes. If he drove three hours in total at the same rate, how far did he go?

irrational, then, just means all the numbers that aren't rational. every integer is a rational number, since each integer n can be written in the form n/1. however, numbers like 1/2, 45454737/2424242, and -3/7 are also rational, since they are fractions whose numerator and denominator are integers.

step-by-step explanation:

time is equal to distance over rate so

t = d/r

need a little bit more information for the second question.