What does (1, 20) represent

It represents a point on a graph. The 1 represents the x-coordinate ( how many from side to side) and the 20 represents the y-coordinate (up and down) for this point. There are an infinite number of combinations you can do, including decimals or fractions.  If you were to plot it you would go 1 space to the right and then count 20 spaces up to get (1,20).

I hope this helps :)

Step-by-step explanation:

step-by-step explanation:

first you will have to convert 3/4 into a decimal

which is .75

then you will have to divide 1.5 by .75

which is 2

no you have to divide

3

step-by-step explanation:

divide 13.5 by 9 to get the scale factor. it equals 1.5

2 * 1.5 = 3