Marty’s dog can run 3 miles in 20 minutes. What is the dog’s speed in miles per hour? How do you get the answer. Can you please simplify the answer so I can understand, please

9m

Step-by-step explanation:

easy 20 20 20 each 3 m

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