This unit is designed to provide you with the skills to use linear expressions and equations to describe and solve problems. You’ll practice adding and subtracting polynomials of degree 1 in real-world contexts. Then you’ll solve linear equations in one variable, applying the distributive property where necessary. Next you will rewrite and simplify numerical radical expressions involving square roots. You’ll also examine the results of adding or multiplying rational and irrational numbers. At the end of the unit, you’ll apply what you’ve learned to explain mathematical ideas using precise language and symbols.