BC and DC are tangent to circle A. Kite ABCD is inscribed in circle E. The radius of circle A is 14 and the radius of circle E is 15.
Find the length of BC rounded to the nearest tenth.

Cal's go cart has a gas tank with the dimensions shown below. he uses a gas can that holds 11 gallon of gas, to fill the go cart tank. 11 gallon = 231 inches^3 how many full gas cans will it take to fill the go cart's gas tank?

Compute the standard deviation of the following set of data to the nearest whole number. 10, 10, 15, 20, 25

Use pascal's triangle to find the missing values. x4 - 4xb + 6x2 - ax + 1