91Ó°ÊÓ

Solve the quadratic equation by factoring. $$ x^{2}+4 x-21=0 $$

Solve the inequality. Write your final answer in interval notation. $$ 4 x-7 \leq 9 $$

For the following exercises, use the information to find a linear algebraic equation model to use to answer the question being asked. Mark and Don are planning to sell each of their marble collections at a garage sale. If Don has 1 more than 3 times the number of marbles Mark has, how many does each boy have to sell if the total number of marbles is 113\(?\)

For the following exercises, solve the equation for \(x\). $$ 7 x+2=3 x-9 $$

For the following exercises, solve the inequality. Write your final answer in interval notation $$ 4 x-7 \leq 9 $$

For each of the following exercises, find the \(x\)-intercept and the \(y\)-intercept without graphing. Write the coordinates of each intercept. $$4 y=2 x-1$$

For the following exercises, solve the rational exponent equation. Use factoring where necessary. $$ x^{\frac{2}{3}}=16 $$

For the following exercises, evaluate the algebraic expressions. If \(y=x^{3}-2,\) evaluate \(y\) given \(x=i\)

Mark and Don are planning to sell each of their marble collections at a garage sale. If Don has 1 more than 3 times the number of marbles Mark has, how many does each boy have to sell if the total number of marbles is \(113 ?\)

For the following exercises, solve the inequality. Write your final answer in interval notation $$ 3 x+2 \geq 7 x-1 $$