A company takes care of cats and dogs overnight when their owners are out of town. The company charges $18 per cat per night and $30 per dog per night. On Saturday
of 16 cats and dogs. The system of equations shows the total amount the company charged on Saturday night for the number of cats, the number of dogs, y, that were taken care of.
X+ y = 16
18x + 30y = 432
How many cats did the company take care of on Saturday night?