What is the value of x?

What is the effect on the graph of the parent function f(x) = x when f(x) is replaced with 3f(x)? a) shifts the line 3 units up b) shifts the line 3 units down c) increases the slope of the line by a factor of 3 d) decreases the slope of the line by a factor of 3

What are the constants in this expression? -10.6+9/10+2/5m-2.4n+3m

Name the most appropriate metric unit for each measurement