Answer:
Step-by-step explanation:
ANSWER

EXPLANATION
Lines WO and WX are tangents to the circle.
The angle subtended at the center, Z by minor arc XO is the angle subtended at the circumcenter by the same arc.
Therefore the central angle is 2x°.
The two radii ZX and ZO meets the tangents at right angles.
This implies that:

Or



Divide both sides by 2

If she has 6 more 4 sent stamps that takes off 24 cents from the total of 114 which equals 90. 6x9=54 4x9=36
54+36=90 9+4=13. So you have 9, 6 cent stamps & 13, 4 sent stamps
You will have 2,484.69 after the commission
Hope this helps :)
Step 1
Given;

Step 2
A) she will owe

B) The effective annual rate is given as;