B) A circle is shown with centre O.
The shaded area is a What
of the circle.

Asap! i'm not good math and i'm lost.

Someone answer asap for ! the following statements are true about the coins calvin and sasha have collected. * calvin and sasha has the same amount of money. * calvin has only quarters. * sasha has dimes, nickels, and pennies * calvin has the same number of quarters as sasha has dimes. * sasha has $1.95 in coins that are not dimes. exactly how many quarters does calvin have?

Having a hard time understanding this question (see attachment).