Use the number line below, where RS = 4y +3, ST = 3y + 9, and RT = 11y-20. a. What is the value of y?
b. Find RS, ST, and RT.

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

Another type of subtraction equation is 16-b=7. explain how you would sole this equation then solve it.

Bring the fraction a/a-4 to a denominator of 16-a^2