Answer:
100
Step-by-step explanation:
20 times 100 equals 2000
1km = 1000m
1hr = 3600sec
Do proportions:
1km / 1000m = 15km / x
15000m = x
1hr = 3600sec
15000/3600 = 4.2m per second
Choice 4
Seven thousand, seven hundred seventy seven and seven tenths
90 degrees, a right triangle has 1 right angle which is 90 degrees
If it is packed 2/5 in 1/2 minutes
1 minute =2/5*2=4/5 or 0.8 boxes/min