Answer
The minimum charge per slice is $1.70
Work Step by Step
The pizza costs $\$5.40$ to make.
The manager wants to make at least $\$4.80$ from the sale of each pizza.
Therefore, the pizza must be sold for at least $\$5.40 + \$4.80$ which is $\$10.20$
Since there are 6 slices for each pizza, we can find the minimum charge per slice:
$\frac{\$10.20}{6} = \$1.70$
