Divide 4 by 12, which equals approximately 0.33333, then multiply that to 180, which gives us 60. So she sold 180 ears of corn for $60.
Its b because to simplify radical you multiply by in this instance sqrt of 5 on the denominator and numerator
Using parenthesis, we want to add 25 and 9 first before dividing.
170/ (25+9)