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 Suma y resta Producto por escalar Producto Inversa
 Monomials Polynomials Special products Equations Quadratic equations Radical expressions Systems of equations Sequences and series Inner product Exponential equations Matrices Determinants Inverse of a matrix Logarithmic equations Systems of 3 variables equations
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 Ecuación de una recta Posición relativa de dos rectas Distancias Angles in space Inner product

 Discounts Often stores have sales and they give discounts off merchandise. Some stores even have store-wide discounts, like 15% off everything. Everyone likes a good sale! The local clothing store needs to make room for their summer stock so they put all their spring stock on sale for 25% off. What is the discount on a pair of pants that cost $89? Step 1: Convert 25% to a decimal = .25 Step 2: Multiply$89.00 x .25 = $22.25 The discount is$22.25 and the sale price is $89.00 -$22.25 = $66.765. A pass at a water park is$58. Halfway through the season, the pass is discounted by 20%. What will be the discounted price? Step 1: Convert 20% to a decimal = .20 Step 2: Multiply $58.00 x .20 =$11.60 The discount is $22.25 and the sale price is$58.00 - $11.60 =$46.40.