While at the beach, shari and alicia build a sand castle. shari estimates that there are 6 x 10^15 grains of sand used to contruct the sand castle, while alicia estimates that there are 2 x 10^12 grains of sand in the sand castle. how many times greater is shari's estimate than alicia's?

How to write 3 tenths and 5 tenths as a decimal

Which is a true statement about an exterior angle of a triangle a. it is formed by two segments that are not sides of the triangle, b. it forms a linear pair with one of the interior angles of the triangle, c. it is complementary to one of the interior angles of the triangle. d. it is formed by two segments that are sides of the triangle.

On a string instrument, the length of a string varies inversely as the frequency of its vibrations. an 11-inch string has a frequency of 400 cylces per second. find the frequency of a 10-icnch string.