Can someone answer this pls

Find the value. a. 0.003 b. 0.03 c. 0.3 d. 3

What are the exclude value of mn+3m

The graph of f(x) is obtained by reflecting the graph of f(x)=-3|x| over the x-axis. which equation describes f(x)? a) f(x)=3|x| b) f(x)=|x+3| c) f(x)=-3|x| d) f(x) = - |x+3|