9.81784090317
I added more just in case if a teacher needs the whole answer for some reason.
30, you could just multiply both numbers, but it's also better to list out the factor until both match
I think it is 1/3 but I am not sure. Sorry if wrong.
The answer is 2x-y
step-by-step explanation
in order to simplify you have to come one like terms and in this case you have your 3x and you’re subtracting x which is also know as 1x.
3x - 1x = 2x (then you still have your y) so 2x-y
The first figure below shows the graph for problem 5).
The second figure below shows the graph for problem 6).