Answer: c and e
Step-by-step explanation:
To evaluate an algebraic expression means to find the value of the expression when the variable is replaced by a given number. To evaluate an expression, we substitute the given number for the variable in the expression and then simplify the expression using the order of operations.
Answer:
Since the Y coordinate is constantly 9, it is a horizontal line.
Step-by-step explanation:

The answer is 15*ln(m)-6*ln(n)