A.) 5 layers with 48 balls in each layer would equal 250 balls in the box
(5x48=250)
B.) 15 layers with 48 balls in each layer would equal 720
(15x48=720)
Answer:
7
Step-by-step explanation:
By Basic proportionality theorem:

$4680
Since 18% is 18/100 you just have to multiply the $842.4 by the reciprocal of that to find your answer
Reciprocal of 18/100 is 100/18
842.4* 100/18 equals 84240/18
84240/18 equals 4680