The pancakes were $4.00 a stack and they sold 60 stacks for a total of 4*60 = $<<4*60=240.00>>240.00
The bacon was $2.00 a slice and they sold 90 slices for a total of 2*90 = $<<2*90=180.00>>180.00
They sold $240 in pancakes and $180 in bacon for a total of 240+180 = $<<240+180=420.00>>420.00
#### 420