Just add up how much Luna practiced which is 20+30+20 to get 70 and then add another 30 to get 100. So Elsa practiced for 100 minutes or 1hour 40 minutes.
Answer:
p=mv
Step-by-step explanation:
10. 8 divided by 4 is 2 times 2 is 4 8 plus 6 minus 4 is 10
The answer for what the ratio is for 4% is 4:100
