Answer:
45
Step-by-step explanation:
3x+x=180
4x=180
x=180/4
x=45
4.45 rounded to the nearest tenth is 4.6 because the rule is five and up is up and 4 and lower is down
A dilation is a transformation

, with center O and a scale factor of k that is not zero, that maps O to itself and any other point P to P'.
The center O is a fixed point, P' is the image of P, points O, P and P' are on the same line.
In a dilation of

the scale factor, k is mapping the original figure to the image in such a way that the
distances from O to the vertices of the image are k times the distances
from O to the original figure. Also the size of the image are k times the
size of the original figure.
Thus for a dilation using the rule

results in the distance of the image form O being twice the distance of the original point from O.
Therefore, it can be observed that the scale factor of the dilation, k, is 2.
Answer:
You just change the value for each united and graph normally
Step-by-step explanation: