Exam 1: Introduction to Real Numbers and Algebraic Expressions

Solve the problem. -The stock market gained 40 points on Tuesday and lost 19 points on Wednesday. It had closed on Monday at 2701 points. Where did the market close on Wednesday?

Multiply. - $\frac{6}{5}(a-b+5)$

Solve the problem. -A school accepts $\frac{3}{5}$ of its applicants. Express this fraction as a percent.

Simplify. - $-9+(-12)+(-11)+(-8)+4+(-15)$

Multiply. - $8 \cdot(-7) \cdot(-6)$

List the terms of the expression. - $3-3 x-8 x y-5$

Convert to decimal notation. - $\frac{57}{100,000}$

Subtract. - $2.330-(-0.88)$

Multiply. - $-1.94 \cdot(-4.7)$

Simplify. - $\frac{8 \cdot(6+2)+8 \cdot 3}{8 \cdot(3-1)}$

Evaluate - (-x) for the given value of x. - $x=-32.52$

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

Write an equivalent expression using the indicated name for 1. - $\frac{14}{12}$ (Use $\frac{20}{20}$ for 1 .)

Divide. -

Convert to fractional notation. Do not simplify. -0.95

Add. Do not use a number line except as a check. - $-\frac{2}{5}+\frac{13}{15}$

List the terms of the expression. - $-3+3 a-7 b-7 a b$

Determine whether the statement is true or false. - $10 \geq 20$

Convert to decimal notation. - $870 \%$

Perform the indicated operation and, if possible, simplify. - $\frac{48}{7} \div 6$