Acalifornia amusement park had an attendance of 14,730,000 in a year. a florida amusement park had an attendance of 17,640,000 in a year. round each number to the nearest ten million. what was the combined attendance at both amusement parks?

14,730,000 rounded to the nearest 10 million would be 10,000,000.

17,640,000 rounded to the nearest 10 million would be 20,000,000.

10,000,000+20,000,000=30,000,000

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.