The expression - 260 + 18m represents a submarine that began at a depth of 260 feet below sea level and ascended at a rate of 18 feet per minute. What was the depth of the submarine after 9 minutes? Select the correct answer below and, if necessary, fill in the answer box to complete your choice. O A. The submarine was feet below sea level after 9 minutes. O B. The submarine will have reached sea level after 9 minutes.
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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