16. Apples are on sale at the market at 4 pounds for \( \$ 2.00 \). What is the price for 1 pound? 17. Three apples weigh about a pound. About how much would 1 apple cost? (Round to the nearest cent.) 18. One dozen eggs cost \( \$ 1.98 \). How much does 1 egg cost? (Round to the nearest cent.) 19. One dozen eggs cost \( \$ 1.98 \). If the charge at the register for only eggs, without tax, was \( \$ 11.88 \), how many dozen were purchased? 20. Best Shoes had a back to school special. The total bill for 4 pairs of shoes came to \( \$ 69.24 \) (before tax). What was the average price for each pair of shoes?

a) \( \sqrt[5]{-32}+\sqrt[5]{1} \)

2 Una organización comunitaria desea determinar la proporción de residentes que sienten que reciben suficiente apoyo del estado, con un margen de error del \( 4 \% \) y con nivel de confianza del \( 97 \% \), determinar el tamaño de la muestra, utilice la siguiente muestra pilota para estimar la varianza. ¿Ha reciben suficiente apoyo del estado? SI SI SI SI NO SI NO NO NO SI NO SI SI SI SI.

The melt density is \( 0.73 \mathrm{~g} / \mathrm{cc} \). The die diameter is 3 inches and the die gap is 0.040 inches. 6. Again using the conservation of mass, determine the melt velocity and the take-up ratio. Determine the blow-up ratio and the forming ratio.

Use Cramer's Rule to solve the system of equations \( \left\{\begin{array}{l}-3 x-y=8 \\ 4 x+y=6\end{array}\right. \)

Find \( d y / d x \) \[ \begin{aligned} x & =\sqrt[9]{t} \\ y & =2-t\end{aligned} \]