Find the measure of angle b. Which is the Answers?

A.107
B.73
C.17
D.163

Can you help me, I would appreciate it very much :)

Acircle has a circumference of 28.36 units what is the diameter of the circle

Barney & noblet customers can choose to purchase a membership for $25 per year members receive 10% off all store purchases 1. how much would a member pay per year if he bought $50 worth of items each year? 2. write a slope-intercept equation that expresses how much a member pays per year using x to represent his purchases per year 3. how much would a member have to spend per year to pay off his membership fee?

In september, louise planted a tree. every month, the tree louise planted grew 2 inches. what would the constant of proportionality of the line be?