Answer:1350x,y-4
Step-by-step explanation:
First add liile terms so you equation will be 4x+7=16, then subtract 7 from both sides and you get 4x=9, finally divide both sides by 4 and you will get x=2.25
B Perimeter is the sides added up together there for 60÷4 = 15
The maximum number of nights he could stay is 4 nights