Find the common ratio of the geometric sequence. $\frac{1}{8\pi },\frac{1}{(8\pi {)}^2},\frac{1}{(8\pi {)}^3},\frac{1}{(8\pi {)}^4},....$

A) $\frac{1}{{\pi }^2}$
B) $\frac{1}{\pi }$
C) $\frac{1}{8\pi }$
D) $\frac{1}{8}$
E) $\frac{1}{(8\pi {)}^2}$

{Ages of Retirees Narrative} Calculate the first quartile of the ages of the uninsured retirees.

A contract requires payments of $1,000, $2,000, and $3,000 in 90, 120, and 150 days respectively, from today. What is the value of the contract today if the payments are discounted to yield a 6% simple interest rate of return?

Solve the expression $\sqrt{x+4}=9-\sqrt{x}$ using a graphing calculator. Round your answer to three decimal places.

A) 44.599
B) 0.299
C) 18.299
D) 225.781
E) 112.891

Identify the transformation of $f(x)=15^x$ . $h(x)=-15^x$

A) a reflection about the y -axis
B) a reflection about the x -axis
C) a reflection about the line y=-x
D) a reflection about the line y=x
E) a reflection about the line x=15

Refer to Turner's Toys, Inc. Compute the relationship of net income to net sales. Express your answer as a percentage.