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
3647 cm
what is the value of x?
enter your answer in the box.
x=
cm

When rates are expressed as a quantity of 1, such as 2 feet per second or 5 miles per hour, they are called unit rates. if you have a multiple-unit rate such as 120 students for every 3 buses, and want to find the single-unit rate, write a ratio equal to the multiple-unit rate with 1 as the second term.