Respuesta :

Answer:

1) 52.5   2) 31 inches

Step-by-step explanation:

1) 105/5 = 21

   2.5 x 21 = 52.5

2) radius = 5 inches

diameter = 10 inches

circumference = [tex]\pi[/tex] x 10

circumference = 31.41592654

31 is the closest

Answer:

first one is 52.5 for sure

second one ion know. I'd say its 16

Step-by-step explanation: