It is 5/450, which can be simplified, if required.
0.5
1/4
1/20
5cm/100 cm= 5/100 or 1/20
The GCF is 15m.
45m means 45 million so 45,000,000 45000 is 45k
450000
5cm*5cm*5cm = 125 cubic cm.
The volume of a cube of 5cm is: 125 cm3
5cm to the 3rd power = 5cm x 5cm x 5cm = 125cm3 (or 125 cubic centimeters)
9cm + 5cm + 9cm + 5cm = 28cm
You need the amount of time that it took to fall the 45m.