A piece of electrical pipe conduit has a diameter of 1, 1/2 inch and a wall thickness of 3/16 inch what is the inside diameter

What is the diagram u didn't post that

First step is to get rid of the square root. remember that a square root is the same as raising to the (1/2) power. see below: multiply exponents per exponent rules to get: remember you subtract exponents from the denominator and add exponents in the numerator so: simplify further: so a is the correct choice. if you don't understand this google exponent rules and it will you understand. look at the image results.

It would be 3x+3 because the skate rental is for the day and she spent 3 hours skating. hope this !