We are told that pizza costs $7.00 and the delivery charge is $5.00.
Therefore, we can calculate the cost of buying a number of pizzas as follows:
1 box of pizza:
When we buy 1 box of pizza, we need to pay $7.00 for it and also pay $5.00. Thus, we need to pay $7.00 + $5.00 = $12.00 in total.
2 boxes of Pizza:
We need to pay 2($7.00) = $14.00 for 2 boxes of pizza but we will still pay just $5.00 for delivery. Thus, we will pay $14.00 + $5.00 = $19.00 in total.
3 boxes of pizza:
We need to pay 3($7.00) = $21.00 for 3 boxes of pizza and a delivery fee of $5.00. The total payment will be $21.00 + $5.00 = $26.00.
4 boxes of pizza:
We need to pay 4($7.00) = $28.00 for 4 boxes of pizza and a delivery fee of $5.00. The total payment will be $28.00 + $5.00 = $33.00
Thus, for x boxes of pizza, the cost y, will be:
Thus, we can fill up the table as such: