This chapter reviews the use of proportions, the basic operations on integers, and all aspects of percent problems, solving them by using a formula. Algebraic expressions are evaluated, and linear equations in one variable are solved. The laws of exponents and the use of negative exponents are covered for future use. Some applications related to consumer math are included.
After this chapter you should be able to
1. perform the four basic arithmetic operations on integers.
2. apply proportions to solve ratio and rate problems.
3. solve the three basic types of percent problems.
4. calculate percent of increase and decrease.
5. evaluate algebraic expressions.
6. solve algebraic equations.
7. perform operations with exponents.
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