Grade 7 McGraw Hill Glencoe - Answer Keys Answer keys Chapter 5: Expressions; Lesson 1: Algebraic Expressions

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Grade 7 McGraw Hill Glencoe - Answer Keys

Chapter 5: Expressions; Lesson 1: Algebraic Expressions

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Evaluate each expression if d = 8, e = 3, f = 4, and g = -1.

\(4e^2=\)

\(8g - f=\)

\(\large\frac{(5+g)^2}{2}=\)

\(e^2-4=\)

Question 26 (request help)
The expression \(\large\frac{w}{30}\) , where w is a person’s weight in pounds, is used to find the approximate number of quarts of blood in the person’s body. How many quarts of blood does a 120-pound person have?

Question 27 (request help)
Model with Mathematics Refer to the graphic novel at the beginning of the chapter and the frame below. Let n represent the number of text messages. Evaluate the expression 0.15(n − 250) + 5 to find the cost of 275 text messages.