45n+15
Factor out 15 from the expression
15(3n+1)
That would be about 1400 dollars
The Priority is always to parenthesis. It means that in both equations, begin by operating what's inside the parenthesis. Then Subtract what's left.
For the first one you get:



For the second one you get:



Which mean that The 2 equations are not equal, because

Hope this Helps! :D
4. 0.9m
Explanation:
0.9mm is smaller than a lego counter top.
0.9cm is a Lego counter top, actually 0.9cm is still probably smaller.
0.9 kilometers is 900 meters so uh… 2700 ft tall? I don’t think your counter top is taller than Godzilla.