<u>Part</u><u> </u><u>(</u><u>a</u><u>)</u>

<u>Part</u><u> </u><u>(</u><u>b</u><u>)</u>

Answer:
divide the previous value by 5
Step-by-step explanation:
125/5 = 25
25/5 = 5
5/5 = 1
1/5 = ⅕
Answer:
Diameter is basically double the radius, a physical representation of it is a full line that goes across the middle of the circle, if that makes sense. So you do 2 x 2 = 4 units
Hope that answers your question
The new lengths will be 17.5 and 12.5
multiply each dimension by the scale factor of 2.5
7 x 2.5 = 17.5
5 x 2.5 = 12.5
Hope this helps!