Answer:
17........ hope its helpful
Step-by-step explanation:
⇒2x+2y=14⇒2x+2y=14 or x+y=17x+y=17
thx
wait what do you need help with
Answer: 98
Area of four walls = Curved surface area
= perimeter × height
= 28 × 3.5
= 98 m square