Which of the following describe an angle with a vertex at y?
check all that apply.
a. xyz
b. zxy
c. xzy
d. zyx

A and D

Step-by-step explanation:

See I cannot explain you by diagram as I cannot make it here but the short trick is that the angle with the vertex you are looking for should be in the centre.

Here, it is XYZ and ZYX

$25

step-by-step explanation:

25 - 4.50 = 20.5

20.5 / 2 = 10.25

10.25 + 10 = 20.25

20.25 - 12.50 = 7.75

therefore the answer is $25 as shown as the first number.