The average distance between the earth and the sun is approximately $1.495 \times 10^{11} \mathrm{~m}$

Estimate the distance in kilometers that the earth travels around the sun in one year. Write your answer in scientific notation. Round to the nearest hundredth.

Write each fraction or decimal as a percent.

$$\frac{1}{6}$$

Which is a solution to the system below?

$$\left\{\begin{array}{l} -x+2 y=6 \\ -3 x+4 y=4 \end{array}\right.$$

A $(7,5)$

B $(8,7)$

C $(0,0)$

D $(-16,-11)$

Classify the polynomial expressions by their degree and by the number of terms.

$$x^1+5 x^0$$

Consider the following polynomials: $P_1=2 x^5+x^3, P_2=-2 x^5-x^3+x$, $P_3=x^2$, and $P_4=x^5$. Find the number of terms in each of these sums: $P_1+P_2$, $P_1+P_3$, and $P_1+P_4$. Use the results to make a generalization about the number of terms in the sum of two polynomials compared to the number of terms in the polynomials that make up that sum.

Multiply the matrices. Check using a graphing calculator.

$$\left[\begin{array}{rr} -2 & -1 \\ 6 & 4 \end{array}\right] \cdot\left[\begin{array}{rrr} -1 & 0 & 1 \\ 0 & 1 & 0 \end{array}\right]$$

Given the slope and a point of the line, graph the line. Determine the $y$-intercept of the line.

$m=-\frac{4}{5}(5,-5)$.

Match the solution with the system of equations.

$$x=\frac{\left|\begin{array}{rr}8 & 2 \\ 1 & -1\end{array}\right|}{\left|\begin{array}{rr}5 & 2 \\ 3 & -1\end{array}\right|}$$

$$y=\frac{\left|\begin{array}{rr} 5 & 8 \\ 3 & 1 \end{array}\right|}{\left|\begin{array}{rr} 5 & 2 \\ 3 & -1 \end{array}\right|}$$

A

$$\left\{\begin{array}{l}8 x+2 y=5 \\ x-y=3\end{array}\right.$$

B

$$\left\{\begin{array}{l}5 x+8 y=2 \\ 3 x+y=-1\end{array}\right.$$

C

$$\left\{\begin{array}{l}5 x+2 y=8 \\ 3 x-y=1\end{array}\right.$$

D

$$\left\{\begin{array}{l}8 x+y=5 \\ 2 x-y=2\end{array}\right.$$

Given the slope and a point of the line, graph the line. Determine the $y$-intercept of the line.

$m=\frac{5}{3}(-3,1)$.

Use the matrices to find the products, if possible.

$$A=\left[\begin{array}{r} -1 \\ 5 \\ 3 \end{array}\right] \quad B=\left[\begin{array}{lll} -2 & 0 & 2 \end{array}\right]$$

BA

Identify the subsets of real numbers of which each number is a member.

$$0.33$$

Simplify the expressions.

$$(4 a+6 b)(4 a-6 b)$$

Classify the polynomial expressions by their degree and by the number of terms.

$$7 x^3+3 x^2+5 x$$

Write each fraction or decimal as a percent.

$$0.005$$