Question list $,K,$ A home$-$decorating company is determining the amount of fabric required for a customer's window treatments. A single window requires $13\frac{2}{3}$ yards and a double window requires $16\frac{5}{6}$ yards of fabric. If there are two single windows and one double window, how much fabric is required?

Question list

Question $1$

A man has a simple discount note for $$6,600,$ at an ordinary bank discount rate of $8\mathrm{.}84\%,$ for $50$ days. What is the effective interest rate? Round to the nearest tenth of a percent.

The effective interest rate is $\%.$

$($Round to the nearest tenth of a percent as needed.$)$