Answer:
48 (i might be wrong)
Step-by-step explanation:
180-66-66=48
If the bigger pentagon has side length of 5 units and the smaller pentagon has side length of 1 unit, you can know that the dilation was 1/5 = 0.2
This means that the sides of the big pentagon were multiplied by 0.2 to obtain the smaller pentagon.
It would be 4. in the equation y=mx+b, b is the y-intercept.