1.)Camille has a daily school allowance of ₹80. she spends ₹45 for lunch and save the rest. how much does she save in a 30-day month?

2.) the temperature has been changing at a rate of -2°F per hour and is predicted to continue at this rate. the temperature is now 0°F. what was the temperature 2 hours ago? what temperature can be predicted 5 hours from now?

3.) an elevator is moving up it a rate of one meter per second. the elevator is now at the street level. when was the elevator 6 meters below street level? when will the elevator be 12 meters above street level? ​