Final answer:
A drought can cause the water supply level to drop by a few inches each week. In this case, the level drops 9 inches each week. To find out how far it will have dropped in 4 weeks, you can use integers.
Step-by-step explanation:
A drought can cause the level of the local water supply to drop by a few inches each week. Suppose the level of the water supply drops 9 inches each week. Write this information using integers and compute how far it will have dropped in 4 weeks.
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