Find the area and volume of the trapezoids first
Can be expressed as y=0.55n
So do 81 divided by 4 we know that 80 divided by 4 is 20 so it would be 20 and some change
Why not? Because every math system you've ever worked with has obeyed these properties! You have never dealt with a system where a×b did not in fact equal b×a, for instance, or where (a×b)×c did not equal a×(b×c). Which is why the properties probably seem somewhat pointless to you. Don't worry about their "relevance" for now; just make sure you can keep the properties straight so you can pass the next test. The lesson below explains how I kept track of the properties.
The answer is -34 cause if x is -7 and y is 3 then you know you switch em out and do the thing and get the answer.
