how do I solve this?
answer is D. $240.find the area. A=L×W.then multiply the area with the cost per square foot.
3 1/2 = 7/22/3 * 7/2 =7/3 (what she used)7/2 - 7/3 = 21/6 - 14/6 = 7/6 (what's left) is 1 1/6 yards