Answer:
25 tennis balls
Step-by-step explanation:
20x5= 100
5x5=25
there are 25 tennis balls in the bag
20/5 = 100/x
x = 25
12.5cm
social programs
8 kilometers in one hour
4:30/4
30 by 4
7.5
4 divided by 4
1
7.5 minutes to 1 kilometer
since there are 60 minutes in a hour
60/7.5 = 8
8 x 1 = 8