Answer:
A graph of an equation is an illustration of a set of points ... Graphing by plotting points is a method of graphing whic ... c ordered pairs satisfy the equation 2x+y = 4, the values of each x and y are s ... Its graph must therefore be a straight line. ... Find the y-intercept by setting x in the given equation equal to 0 and finding the ...
Step-by-step explanation:
Answered respectively;
1) 0.13514
2) 0.125
Area = 38 1/4 = 153/4
Width = 4 1/2 = 9/2
Area = Length x Width
Length = Area/Width
So divide both of them:

So the length is equal to
That's not correct. The terms 2a and 3b are not like terms, so we cannot combine them to get 5ab. We simply leave it as 2a+3b.
If you had 2a+3a, then it would simplify to 5a
Similarly, 2b+3b = 5b
Or you could have 2ab+3ab = 5ab
The key is that the variable portions must match up to be able to add them.