Across section of a hollow circular pipe shows that its inner diameter is 2 1/10 inches and that the pipe is 3/5 inch thick. what is its outside diameter?

  3 3/10 inches

Step-by-step explanation:

The thickness of the pipe adds 3/5 inch to the radius. The diameter is twice the radius, so 2 × 3/5 = 6/5 inch is added to the diameter.

  2 1/10 + 12/10 = 2 13/10 = 3 3/10 . . . . outside diameter, inches

yes because there is exactly one y value for every x value

for function there can't be more than one value for every x value

c

step-by-step explanation: