Exam 7: Introduction to Real Numbers and Algebraic Expressions

Insert $<$ or $>$ to write a true statement. -0.125 ____-1.75

Rewrite the division as a multiplication. - $\frac{3 x+7}{7}$

Remove parentheses and simplify. - $-7.7(5 r+5)+8.6(8 r+5)$

Write an equivalent expression. Use an associative law. -(8x)y

Collect like terms. - $6 \mathrm{q}-2-5 \mathrm{p}+4 \mathrm{q}-8 \mathrm{p}$

Divide, if possible. - $\frac{0}{-12}$

Find the reciprocal, if it exists. --4.7

Find an equivalent expression without parentheses. - $-(8 x-8)$

Substitute to find the value of the expression. -Mary earns three times as much per week as Maureen. If $x$ represents the amount that Maureen earns per week, then $3 x$ represents the amount that Mary earns per week. How much does Mary earn per week if Maureen earns $\$ 346$ per week?

Insert $<$ or $>$ to write a true statement. --98 ____-59

Determine whether the statement is true or false. - $-19>-14$

Simplify. - $(-20-17)(-9-11)$

Add. Do not use a number line except as a check. - $-84+\left(-\frac{2}{9}\right)+13+\left(-\frac{7}{9}\right)$

Find the reciprocal, if it exists. - $\frac{1}{7 x}$

Divide. - $\frac{2}{5} \div\left(-\frac{7}{8}\right)$

Evaluate $-x$ for the given value of $x$ . - $x=4.3$

Solve the problem. -After one round in a card game, your score was -20 points. After the second round, your score was 23 points. How many points did you gain in the second game?

Simplify. - $\frac{7}{23}-\frac{13}{46}+\frac{4}{23}-\frac{5}{46}$

List the terms of the expression. - $-3+3 m+5 m n$

Add. Do not use a number line except as a check. - $-\frac{1}{8}+\left(-\frac{2}{5}\right)$