Steve and ed were comparing how much money they earned in a 9 week period. steve earned $149.53 each week for three weeks. he then earned twice as much each week for the next six weeks. ed earned $108.77 for two weeks. he then earned three times as much each week for the next seven weeks. how much more did ed earn than steve?

Steve: 149.53 x 3 = 448.59
299.06 x 6= 2242.95
2242.95 + 448.59 =
$2242.59

Ed: 108.77 x 2 = 217.54
326.31 x 7 = 2284.17
2284.17+ 217.54 = $2501.71

$2501.71 - $2242.95 =
$258.76

Ed earned $258.76 more than Steve.

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.