I NEED HELP ASAP! I give brainlist to whoever answers The surface area of a cylinder is given by the formula SA = 2r2 + 2rh.
A cylinder has a radius of 9 cm and a surface area of 756 cm2.
Find the height of the cylinder.

The answer is b

Step-by-step explanation:

Thanks for the free brailiest

distance covered by pamela in 9 l of fuel = 99km

let us apply unitary method here.

distance covered by pamela in 1 l of fuel =99/9 =11 km

now let us find distance covered by pamela if she has 12 l of fuel.

distance covered in 12 l = distance covered in 1 l of fuel * 12

we know that distance covered by here in 1 l is 11 km.

so distance covered in 12 l of fuel = 11*12 = 132 km.

3x + 4y -25 =0 represents the amount of change sianna should recieve