Twice the difference of a number and 2 is equal to three times the sum of the number and 9. find the number

The measure of one angle of an octagon is two times smaller that of the other seven angles. what is the measure of each angle?

Asquare has a side that measures 11 units. what is the area of a circle with a circumference that equals the perimeter of the square? use 3.14 for π, and round your answer to the nearest hundredth. 1519.76 units2 379.94 units2 616.56 units2 154.14 units2

You are shooting hoops after school and make 152 out of a total of 200. what percent of shots did you make? what percent did you miss? show proportion(s).