Any portion of the circumference of a circle is called a(n)

a. diameter
b. radius
c. center
d. arc

What is the total surface area of this square pyramid?

What is the common difference for this arithmetic sequence? -6,-2,2,6,10 a.4 b.5 c.3 d.6

Afamily went out to dinner and their bill was $113.if they want to leave a 19% tip, how much should they leave.