C) average of a data set
You add all of the data and divide by the number of data
-9×+1=-×+17
-9×=-×+16 (subtract 1 from both sides)
-8×=16 ( add x to both sides)
×=-2 (divide -8 from both sides)
the circle is 5; the triangle is 2; and the square is 6
15/10 = 1.5 scale factor
X= 9
