Make 2/3 into 8/12 then subtract 1/12 and you get 7/12
9 pieces of glass
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8 pieces of glass per square foot
864 square inches
1 foot = 12 inches
864/12= 72 feet
72/8= 9 pieces of glass
X = -230/3 hope that helps
Domain is the x and range is y so your domain is 2,3,4,5 and your range is 0 and 4
78 cm is the answer to your problem i hope this helps