Cheryl builds cylindrical pools according to measurements given by her customers. Cheryl uses the volume formula for a cylinder, V=πr2h, to determine how big to build the pool. If Cheryl is given the volume and height requirements, how would she rewrite the formula to determine the radius of the pool?

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.

i agree because i see the other persons thinking is clear