Answer:
see attached for diagram
a) √13
b) √29
c) 4
Step-by-step explanation:
Equation of the circle: 
⇒ center = (-1, 3)
⇒ radius = √16 = 4
Distance between 2 points formula:

a) let (-1, 3) = 
let (2, 1) = 

b) let (-1, 3) = 
let (4, 1) = 

c) let (-1, 3) = 
let (3, 3) = 

Answer:
A. 7 pounds
B. $1.60
Step-by-step explanation:
For A you Divide 21 by 3
For B you Divide 14 by 9
The answer will be calculated by Pythagoras theorem here -
Answer C
Step-by-step explanation: