A 2m wide path is made around a square pound of area 6400 m². (a) Find the area of the path.
(b) How many tiles are required to pave on the path by the tile of area 0.40 m²? Find it.
(c) If the cost of a tile is Rs. 7.50, how much total cost will be required to pave the tiles on the path? Find it.

아무도 나를 도울 수 있습니까? Please ​

a) 656m^2 b) 1640 tiles c) 12300

Step-by-step explanation:

a) Area of path=Area of park with path - Area of park

Area of path=(84)^2-(80)^2=656m^2

b) Tiles needed= 656/0.4=1640 tiles

c) Cost=7.5*(1640)=123000

A and B

Step-by-step explanation:

Do the vertical line test! A and B pass the test, however the circle doesn't. That means the circle is not a function.