Kiera's dance class starts at 4: 30 p. m. and ends at 6: 15 p. m. how long is her dance class?

Her dance class is 1 hour and 45 minutes.

This is because there is 1 hour from 4:30 to 5:30. Then, there is 45 minutes from 5:30 to 6:15

Good luck!

If Kiera's dance class starts at 4:30 p.m. and ends at 6:15 p.m. then how long is it? Lets find out. The way I solved it would be to count by hours. 4:30 to 5:30 is one hour. 5:30 to 6:30 is 2 hours. But 6:30 is too much time. So now you take away the required amount to make it 6:15. You have to take away 15 minutes. So 2 hours minus 15 equals 1 hour and 45 minutes. 
Kiera's dance class was 1 hour and 45 minutes long.