Ellen can buy bottles of water in packages of 6 for $10.98 or in packages of 4 for $8.92. How much money does she save by buying
2 answers:
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Let Hypotenuse be x
X² = 20² + 28²
x² = 400 + 784
3a+7=13
3a+7-7=13-7
3a=6
=
a=2
3a+7-7=13-7
3a=6
a=2