Answer:
8
Step-by-step explanation:
Recall these two equations for circumference and diameter.
Circumference = 2*pi*radius
Diameter = radius*2
25.12 = 2*pi*radius
Radius = 4
Diameter = 4*2 => 8
Thus the diameter is 8
Answer:
C.(3|-4)
Step-by-step explanation:
increase = 25* .24 = 6 dollars
new price = old price + increase
new price = 25+6
new price = $31