Pls..help.!math?

Question

1. n= 40000

e = 10%

2. n = 15000

e= 5%

3. n = 20000

e = 2%

4. 50000

e = 10%

5. n = 28000

e = 11%

answer also:

1.) at 6:00 am the temperature was 20 degree Celsius. by 10:00 am it had risen by 6 degree Celsius.

a sudden shower at 11:00 am made it drop by 2 degree Celsius. what was the temperature at 11:00 am?

2.) suppose a certain amount of water cooled at the rate of 3 degree Celsius every 5 minutes.

if water was boiling at 9:00 am when it was taken from the stove about what time was the temperature 67 degree Celsius?

3.) the lowest recorded world temperature of - 129 degree Fahrenheit was observed at the Soviet Antartica station of Vostok on july 21 1983. what is the recorded lowest temperature in Celsius? what is the difference between the highest and lowest recorded temperatures?

note:

pls.. answer with your solution..

Answer 1

THAT IS SOOOO HARD!!!!!

Answer 2

1 e=4000

2 e=750

3 e=400

4 e=5000

5 e=2880

1.)24 celcius

2.)9:40pm

3)wow i don't feel math today

Answer 3

1. 24 degrees celcius.

2. 9.55 am.