The school band is scheduled to march in the annual parade, but the band’s starting point is changed the day before the parade. the band director calls three band members. each band member calls three other band members. then these band members each call three members. how many band members, including the band director, are notified of the new starting point? . a. 12 members b. 13 members c. 20 members d. 40 members

3+9+9+9+9+1 = 40 so 40 band members including the band director are notified of the new starting point.

Addition (often signified by the plus symbol "+") is one of the four basic operations of arithmetic, with the others being subtraction, multiplication and division. The addition of two whole numbers is the total amount of those quantities combined.

The correct answer between all the choices given is the last choice or letter D. I am hoping that this answer has satisfied your query and it will be able to help you in your endeavor, and if you would like, feel free to ask another question.

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