Mr Smith is in charge of the chess club at his school. They just won the county chess championship. He wants to treat his team to a party for all there hard work this season.
There are 20 people on the chess team
• He is buying chips and cookies for the party
• The chips cost $1.89 each and cookies cost $2.99
• He spent $102, and purchased 40 items

7

step-by-step explanation:

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

details

step-by-step explanation:

answer: what in the world is this

step-by-step explanation: