Answer:
Step-by-step explanation:
3 times 60 = 180 minutes
10 * 60 = 600 minutes
600/20 = 30 * 3 = 90 hours
Its a 25% increase
4
1/3 of 30 is 10
2/5 of 10 is 4
0.7 or 0.70 can be your answer
