The radius of the large sphere is double the radius of the small sphere. 2 spheres are shown. One sphere has a radius of 3 and the second sphere has a radius of 6.

How many times is the volume of the large sphere than the small sphere?

Which of the following represents a number squared is equal to twenty more than nine times that number ? a) x squared = 9x + 20 b) x squared = 20x + 9 c) x squared > 9 + 20x d) x squared = 9 + x + 20

What are the measures of ∠a, ∠b, ∠c and ∠d? explain how to find each of the angle measure.

Problem melissa is her dad build a walkway in their backyard. the walkway will be 54 feet long and 1.5 feet wide. the local hardware store sells tiles which are 1.5 by 1.5 feet and come in boxes of 12. how many boxes of tiles do they need?