Answer:
7
Step-by-step explanation:
If he takes 7 hours, she would take 7 hours doing it at the same pace
Turn is into a decimal.............................
A rational number is any number that can be written in a/b form (like a fraction). So it just can't be a repeating decimal like how pie goes on forever. So let's see. 8.05 could work. Since you could write that as 8.05 over 1 (8.05/1)
2.95, because 0.15×7 equals 1.05. Then you subtract that from 3 and you get 2.95! Hope I helped!
7.2 because anything to the 0 power is 1.