What's the radius of a circle with an area of 123 square feet? a. 6.26 ft. b. 39.17 ft. c. 26.32 ft. d. 3.14 ft.

I'm being volume of cylinder with 13 in. radius and 30 in height answer choices in pic

The median of a data set is the measure of center that is found by adding the data values and dividing the total by the number of data values that is the value that occurs with the greatest frequency that is the value midway between the maximum and minimum values in the original data set that is the middle value when the original data values are arranged in order of increasing (or decreasing) magnitude

Aquadratic equation in standard from is written ax^2= bx+c, where a,b and c are real numbers and a is not zero?