Answer:
The total profit earned by the bakery today was of $495.75.
Explanation:
Spending:
83 + 7 = 90 cakes made, each costing 6.25. So

Earnings:
83 cakes sold by $12.75, so:

Profit:
Earnings subtracted by spending, so:

The total profit earned by the bakery today was of $495.75.