The number of students eating in the school cafeteria has been decreasing at the rate of 25 per year for many years. Assuming this trend continues, write a multiplication problem that describes the change in the number of students eating in the school cafeteria for each situation. Complete parts (a) through (d) below. a. The change over the next 3 years Select the correct answer below. O A. -3125) = " 75 O B. 3(- 25) = " 75 OC. -3-25) =75 O D. 3(25) = 75 b. The situation 3 years ago Select the correct answer below. OA. -3" 25) = 75 O B. 3(25) = 75 OC. 3(" 25)= " 75 O D. - 3(25) = * 75 c. The change over the next n years Select the correct answer below. O A. n(25) = 25n OB. n(25) = " 25n OC. n-25) = - 25n OD. "n(" 25) = 25n

Q: 5. If a number plus 4 equals two times 6, what is the number?

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Percentage

A percentage is a number indicated as a fraction of 100. It is a dimensionless number often expressed using the symbol %.

Algebraic Expressions

In mathematics, an algebraic expression consists of constant(s), variable(s), and mathematical operators. It is made up of terms.

Numbers

Numbers are some measures used for counting. They can be compared one with another to know its position in the number line and determine which one is greater or lesser than the other.

Subtraction

Before we begin to understand the subtraction of algebraic expressions, we need to list out a few things that form the basis of algebra.

Addition

Before we begin to understand the addition of algebraic expressions, we need to list out a few things that form the basis of algebra.