Stephanie sells 12 pretzels per hour. Robert sells 15 pretzels per hour. This week, Robert sold an additional 18 pretzels. Which of the following expressions represents the total sales of both people this week, where S represents the number of hours that Stephanie worked and R represents the number of hours that Robert worked? A.O 12S + 15R + 18 B. 15S + 12R + 18 C.O 12S + 18R D.O 12S + 15R
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.
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X INNOVATION GR 7 Math Unit 3 [25 Items]
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2.
Stephanie sells 12 pretzels per hour. Robert sells 15 pretzels per hour. This week, Robert sold an additional 18 pretzels. Which of the following expressions
represents the total sales of both people this week, where S represents the number of hours that Stephanie worked and R represents the number of hours that
Robert worked?
A.O 12S + 15R + 18
B.O 15S + 12R + 18
C.
12S + 18R
D. 12S + 15R](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F368de2d2-a63b-492e-92e4-79d1cf2e5467%2Fe6d17c97-67e0-4880-9042-7470706e0739%2F4z1tisbf_processed.jpeg&w=3840&q=75)
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