Suppose the sphere below with radius r has a volume equal to 30 units 3? Find the volume of the sphere with twice the radius.
- 2r-
A. 60 units 3
B. 120 units3
C. 240 units3
D. 300 units2

Which expression is equivalent to 3^3 + 2^2?

If you have a set of parallel lines a and b cut by transversal x, if angle 1 = 167 degrees, what is angle 4 and why. also what is the measure of angle 5 and why? you need to use the names of the angle relationship and explain.

Parabolas y=−2x^2 and y=2x^2+k intersect at points a and b that are in the third and the fourth quadrants respectively. find k if length of the segment ab is 5.