Math Problem Statement

The image contains a weekly math review with various math problems, such as finding quotients, writing algebraic expressions, solving word problems, and evaluating expressions. The questions include: 1. Find the quotient: 7/12 ÷ 2/5, 2. Word problem about Kerion's beaded necklace business, 3. Algebraic expression for 'The product of 7 and C minus 13', 4. Word problem involving the percentage of students wearing orange in a soccer tournament, 5. Evaluating expressions like 3x² + 5x + 25 when x = 3.

Solution

The image contains multiple math problems. Here are some of the key questions and steps:

  1. Find the quotient:

    • 712÷25\frac{7}{12} \div \frac{2}{5}
  2. Word problem:

    • Kerion has a beaded necklace business. If she can make 12 necklaces in 2 hours, how long will it take her to make 9 necklaces?
  3. Expression problem:

    • Write an algebraic expression for "The product of 7 and CC minus 13."
  4. Word problem:

    • There are 160 boys and girls in a soccer tournament. 32 of the students are wearing orange. What percent of the players are wearing orange?
  5. Evaluate an expression:

    • What is the value of 3x2+5x+253x^2 + 5x + 25 when x=3x = 3?

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Math Problem Analysis

Mathematical Concepts

Division of Fractions
Algebraic Expressions
Percentages
Word Problems
Evaluation of Expressions

Formulas

Division of Fractions: a/b ÷ c/d = (a/b) * (d/c)
General form of an algebraic expression
Percentage: (part/whole) * 100

Theorems

Algebraic manipulation
Substitution in algebraic expressions

Suitable Grade Level

Grades 6-8