John's manager wanted to figure out how much to charge for a table that just arrived. If the wholesale price of the
chair is $240 and John's store marks up all the furniture by 80%, at what price should the manager sell the chair?

answer: option a.

step-by-step explanation:

you know that the quadrilateral opqr ( a four sided figure) is inscribed in circle. this means that all its vertices are on the circle.

then, by definition, the opposite angles of the quadrilateral are supplementary, this means that the sum of their measures is 180 degrees.

you can observe in the figure that the angles ∠opq   and the angle ∠orq   are opposite, therefore:

then, can be used to d to calculate the measure of ∠opq

113.1

step-by-step explanation:

v=4

3πr3=4

3·π·33≈113.09734