Final answer:
To determine the cost of a meal at a pizzeria, use the formula (Cost of a meal = ($2 × s) + $1.75), where s is the number of slices. For 3 slices of pizza and a drink, the cost would be $7.75.
Step-by-step explanation:
When calculating the cost of a meal at a pizzeria, we need to consider both the price per slice of pizza and the cost of a drink. If we define a variable s to represent the number of slices of pizza, then the total cost of a meal can be represented by an algebraic expression that combines both costs.
To calculate the cost of a meal with s slices of pizza, the formula would be:
Cost of a meal = ($2 × s) + $1.75
For the cost of a meal with 3 slices of pizza, we substitute s with 3:
Cost of a meal with 3 slices = ($2 × 3) + $1.75
= $6 + $1.75
= $7.75
Therefore, a meal consisting of 3 slices of pizza and a drink at the pizzeria would cost $7.75.