Evaluate x – 2y if x = –3 and y = –6.

1. 15
2. 9
3. -9
4. -15

Determine the volume of a cylinder bucket if the diameter is 8.5 in. and the height is 11.5 in.

If f(x) =3x-2 and g(x) =2x+1 fins (f+ g) (x)

If the ratio of sum of the first m and n terms of an ap is m2 : n2 , show that the ratio of its mth and nth terms is (2m − 1) : (2n − 1).