91Ó°ÊÓ

Complete the sentence. The absolute value of 21 is ________________

Prep Exercise 6 When dividing two num bers that have the same sign, the result is ___. Prep Exercise 7 When dividing two numbers that have different signs, the result is ___. divide. $$0 \div(-2)$$

Molecular motion is minimized at \(-273^{\circ} \mathrm{C}\). Oxygen goes from liquid to solid at \(-218^{\circ} \mathrm{C}\). After oxygen turns from liquid to solid, how much colder does it need to get for its molecular motion to be minimized?

For Exercises \(1-74,\) simplify. $$15+(-3)^{3}+(-5)|14+(-2) 9|$$

The following table lists the assets and debts for the Smith family. Calculate their net worth. \begin{tabular}{l|l} Assets & Debts \\ \hline Savings \(=\$ 1498\) & Credit card balance \(=\$ 1841\) \\ \hline Checking \(=\$ 2148\) & Mortgage \(=\$ 74,614\) \\ \hline Furniture \(=\$ 18,901\) & Automobile \(=\$ 5488\) \\ \hline Jewelry \(=\$ 3845\) & \\ \hline \end{tabular}

Prep Exercise 6 When dividing two num bers that have the same sign, the result is ___. Prep Exercise 7 When dividing two numbers that have different signs, the result is ___. divide. $$0 \div(-12)$$

For Exercises \(1-74,\) simplify. $$-28 \div 4+|-3(-2)(-5)|-2^{5}$$

The following table lists the assets and debts for the Jones family, who just financed a new car. Calculate their net worth. \begin{tabular}{l|l} Assets & Debts \\ \hline Savings \(=\$ 214\) & Student loans \(=\$ 15,988\) \\ \hline Checking \(=\$ 1242\) & Automobile \(1=\$ 4857\) \\ \hline Furniture \(=\$ 21,358\) & Automobile \(2=\$ 23,410\) \\ \hline \end{tabular}

Complete the sentence. The absolute value of 9 is ______________

A container of liquid hydrogen fluoride is at a temperature of \(-90^{\circ} \mathrm{C}\). The boiling point for hydrogen fluoride is \(19^{\circ} \mathrm{C}\). How much must the temperature rise for the hydrogen fluoride to boil?