Please help me thx here is the pic below

Look below

Step-by-step explanation:

For number 7:  The answer is reasonable because 20-2.3=17.7

To prove this, you can add 17.7 to 2.3 and get 20 or you can subtract 20 from 17.7 to get 2.3.

20-17.7=2.3

17.7+2.3=20

For number 8: 10.65

To prove this just add 1.32 to 9.33

9.33+1.32=10.65

For number 9: 4.32

To prove this just subtract 13.65 (3rd place runner) from 9.33 (second place runner)

13.65-9.33=4.32

For Number 10: 14.13

To prove this, just subtract 61.05 (Miami) form  46.92 (Albany)

61.05-46.92=14.13

For Number 11: To subtract 7.6 from 20.39 all you do is this.

First set your numbers up like this

20.39

-    7.6

Then you would do as you would do with normal subtraction.

9-6=3

because you cant subtract 7 from 3 you borrow 10 from 0. But because you cant do that you have to borrow it from 2. So now you have 13-7 which is 6. Also the 0 is now a 9 and the 2 is a 1.

Then you just drop the 1 and the 9 and you should get 19.63.

I know math can be confusing sometimes so hopefully this helped.

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