ANALYZE The ratio of dimes to nickels in Pilar's change box is . Pilar has $0.75 in nickels. a. How many nickels does Pilar have? b. How many dimes does Pilar have? (Hint: Write and complete a proportion using the ratio given above and your answer to a.) c. In all, how much money does Pilar have in her change box?

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Equations and Inequations

Equations and inequalities describe the relationship between two mathematical expressions.

Linear Functions

A linear function can just be a constant, or it can be the constant multiplied with the variable like x or y. If the variables are of the form, x2, x1/2 or y2 it is not linear. The exponent over the variables should always be 1.