Rectangle A has length 12 and width 8. Rectangle B has a length of 15 and a width of 10. Rectangle C has a length of 30 and a width of 15. Is Rectangle A a scaled copy of Rectangle B? If so, what is the scale factor?
Is Rectangle B a scaled copy of Rectangle A? If so, what is the scale factor?
Explain how you know that Rectangle C is not a scaled copy of Rectangle B.
Is Rectangle A a scaled copy of Rectangle C? If so, what is the scale factor?

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Titus works at a hotel. part of his job is to keep the complimentary pitcher of water at least half full and always with ice. when he starts his shift, the water level shows 4 gallons, or 128 cups of water. as the shift progresses, he records the level of the water every 10 minutes. after 2 hours, he uses a regression calculator to compute an equation for the decrease in water. his equation is w –0.414t + 129.549, where t is the number of minutes and w is the level of water. according to the equation, after about how many minutes would the water level be less than or equal to 64 cups?