<span>Use percentages to display data
Hope this helps.
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Y is directly proportional to x and therefore takes the form y=kx where k is the constant of proportionality.
Dividing both sides by x for the given values, k becomes 18/4 = 4.5
408 round to the nearest tenth: 410
TU=AB since they are congruent figure. So AB=13
Let the number of hours be x.
70 + 80x < 100x
20x > 70
x > 3.5
