Final answer:
After calculating the total costs, 50 balls at $19.99 each have a higher total cost of $999.50 compared to 9 balls at $7.20 each, with a total cost of $64.80.
Step-by-step explanation:
To determine which option provides more value, we need to calculate the total cost for each quantity of balls and compare them. For 50 balls at $19.99 each, the calculation is as follows:
50 balls × $19.99 per ball = $999.50
For 9 balls at $7.20 each, the calculation is:
9 balls × $7.20 per ball = $64.80
Comparing these two amounts, it's clear that the total cost for 50 balls at $19.99 each is more than the total cost for 9 balls at $7.20 each.