80% or 4/5ths. Explanation: 1 dollar is 100 cents. 80/100 simplified is 4/5

these words are too meet the 20 character minimum
Well it's a cube all sides should be the same size therefore 7 cm as it already says
Answer:

Step-by-step explanation:
From the graph in the attachment Y has coordinates:Y(3,2)
The transformation rule for a dilation with a scale factor k about the origin is:

In this case we have 
We substitute the coordinates and
to get:

This simplifies to:

The first choice is correct.