Which situation describes a time when it would be all right to round the numbers? a. marion bought a book for $12.55. she gave the cashier $20. the cashier thinks of rounding the price to the nearest dollar. she would give marion $7 change. b. patrick needs 25.75 pounds of soil for his flowers and 4.5 pounds of soil for his herbs. he thinks of rounding each amount to the nearest pound. he would buy 31 pounds of soil. c. the pattern calls for a piece of lace 2.4 yd long and another piece 3.25 yd long. the seamstress thinks of rounding each piece to the nearest yard. she would buy 5 yards of lace. d. paul needs 125.25 ft of fencing for one garden and 35.4 ft for another. he thinks of rounding each length to the nearest foot. he would buy 160 ft of fencing.