91Ó°ÊÓ

Find each product. Use an area model if necessary. $$-6 \frac{2}{3}\left(-1 \frac{1}{2}\right)$$

Find each product. Use an area model if necessary. $$1 \frac{3}{7}\left(-9 \frac{4}{5}\right)$$

Find the least common multiple (LCM) of each pair of numbers or monomials. $$\frac{3}{8}, \frac{5}{6}$$

Identify all sets to which each number belongs. $$15.8$$

Identify all sets to which each number belongs. $$9.0202020 \ldots$$

Find each product. Write in simplest form. $$\frac{4 a}{5} \cdot \frac{3}{a}$$

Find each sum or difference. Write in simplest form. \(\frac{3 r}{10}+\frac{3 r}{10}\)

A newspaper is \(12 \frac{1}{4}\) inches wide and 22 inches long. This is \(1 \frac{1}{4}\) inches narrower and one-half inch longer than the old edition. What were the previous dimensions of the newspaper?

Find each quotient. Write in simplest form. $$\frac{10}{3 x} \div \frac{5}{2 x}$$

Find each product. Write in simplest form. $$\frac{n}{18} \cdot \frac{6}{n^{4}}$$