What are you given that you need to convert to or calculate in km/mn?
Step-by-step explanation:
An example of a mathematical expression with a variable is 2x + 3. All variables must have a coefficient, a number that is multiplied by the variable. In the expression 2x + 3, the coefficient of x is the number 2, and it means 2 times x plus 3. ... For example, 2x + 3 could also be expressed as 2(x) + 3 or 2 * x + 3. are you talking about this
Answer:
Answer is B
Step-by-step explanation:
Combine like terms to solve the equation
215 because you would add and subtract the numbers as you go them you come out with your answer