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Write the ratio in lowest terms with whole numbers in the numerator and denominator. \(\$ 16.80\) to \(\$ 2.40\)

Write the ratio in lowest terms with whole numbers in the numerator and denominator. \(\frac{1}{4} \mathrm{mi}\) to \(1 \frac{1}{2} \mathrm{mi}\)

Find the unit costs (that is, dollars per unit). Round the answers to three decimal places when necessary. A package of six newborn bodysuits costs \(\$ 32.50 .\)

Find the unit costs (that is, dollars per unit). Round the answers to three decimal places when necessary. A package of eight AAA batteries costs \(\$ 9.84\)

A window is \(2 \mathrm{ft}\) wide and 3 yd in length \(\left(2 \mathrm{ft} \text { is } \frac{2}{3} \mathrm{yd}\right)\) (PICTURE NOT COPY) A. Find the ratio of width to length with all units in yards. B. Find the ratio of width to length with all units in feet.

Solve the proportion. Be sure to check your answers. $$\frac{9}{21}=\frac{x}{7}$$

A construction company needs 2 weeks to construct a family room and 3 days to add a porch. (PICTURE NOT COPY) A. Find the ratio of the time it takes for constructing the porch to the time constructing the family room, with all units in weeks. B. Find the ratio of the time it takes for constructing the porch to the time constructing the family room, with all units in days.

Corn comes in two size cans, 29 oz and 15 oz. The larger can costs \(\$ 1.59\) and the smaller can costs \(\$ 1.09 .\) Find the unit cost of each can. Which is the better buy? (Round to three decimal places.)

Napkins come in a variety of packages. A package of 400 napkins sells for \(\$ 2.99\), and a package of 100 napkins sells for \(\$ 1.50 .\) Find the unit cost of each package. Which is the better buy? (Round to four decimal places.)

Carbonated beverages come in different sizes and contain different amounts of sugar. Compute the amount of sugar per fluid ounce for each soda. Then determine which has the greatest amount of sugar per fluid ounce. $$\begin{array}{l|c|c} \text { Soda } & \text { Amount } & \text { Sugar } \\ \hline \text { Coca-Cola } & 20 \mathrm{fl} \mathrm{oz} & 65 \mathrm{g} \\ \hline \text { Mello Yello } & 12 \mathrm{fl} \mathrm{oz} & 47 \mathrm{g} \\ \hline \text { Canada Dry } & 8 \mathrm{fl} \mathrm{oz} & 24 \mathrm{g} \\ \text { Ginger Ale } & & \\ \hline \end{array}$$