Answer:
20%
Step-by-step explanation:
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Side length of cube = 9 feet
19 shows direct variation
20 does not (guessing for this one a bit)
19- Shows a steady increase of four in y for each one in x
20- Shows no increase
19 is a constant increase by 4, 20 does not show either
5?
2.8 ounces
4/10= 0.4
0.4*7= 2.8 ounces