Four weeks ago Frank's Pizzeria opened
They spend $759 per week
Then
[tex]4\times759=3036[/tex]is the amount they spent
For the earnigs we are goin to sum the earning of each week:
[tex]1500+1200+800+1420=4920[/tex]To see their profit we subtract form the earnings the amount they spent:
[tex]4920-3036=1884[/tex]Answer: Frank's Pizzaria's profit was of $1884