Could you please explain me how to solve the below questions? Q1: -7 + -5 Q2: -7 - (-5) Q3: -7 - 5 Q4: 7 - (-5) Q5: Every floor of a 104 story sky scraper is 4m high, if a baloon rises 3m every second, how long will it take to rise from the 36th floor to the 96th floor?

Could you please explain me how to solve the below questions? Q1: -7

1.	Could you please explain me how to solve the below questions? Q1: -7 + -5 Q2: -7 - (-5) Q3: -7 - 5 Q4: 7 - (-5) Q5: Every floor of a 104 story sky scraper is 4m high, if a baloon rises 3m every second, how long will it take to rise from the 36th floor to the 96th floor?
Answer» Could you please explain me how to solve the below questions? Q1: -7 + -5 Q2: -7 - (-5) Q3: -7 - 5 Q4: 7 - (-5) Q5: Every floor of a 104 story sky scraper is 4m high, if a baloon rises 3m every second, how long will it take to rise from the 36th floor to the 96th floor?