In the diagram, the radius of the outer circle is
2x cm and the radius of the inside circle is 6 cm.
the area of the shaded region is
1607 cm
what is the value of x?

6x + 3y = -6 2x + y = -2 a. x = 0, y = -2 b. infinite solutions c. x = -1, y = 0 d. no solution

Scenario: a rectangular plot of ground is 5 meters longer than it is wide. its area is 20,000 square meters. question: what equation will you find the dimensions? note: let w represent the width. options: w(w+5)=20,000 w^2=20,000+5 (w(w+5))/2=20,000 w+2(w+5)=20,000

If julia has a value of x5.4 that is equivalent to x10.9 true or false. explain