Exponents and Power Rules In this chapter we will learn about exponent and power. These are very large numbers, and difficult to read, and compare. To make these numbers easy to read, compare and understand we use exponents. Exponents  Definition: When a number repeatedly multiply by itself, we raise it to a power. This is known as […]

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Word Problems – Percentage – Increase & Decrease           Example 1: Gasoline price in year 2017 is $5.38/gallon, and in 2018 it’s price 5.68. What is the percentage of increase. Solution: Original price of gasoline is = $5.38/gallonNew price = $5.68 price increase = 5.68 – 5.38 price increase  = 0.38/gallon         […]

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Pie Graph or Pie Chart – Definition and Examples   Pie Graph (Pie Chart) Definition:  A “pie graph or (pie chart)” is a circular chart divided into sectors, each sector represents a proportionate part of a whole. A pie graph is used to compare parts of a whole. The circle represent the whole. Sector: In a pie graph, the […]

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