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a store employee conducted a survey of 390 randomly selected customers. according to the survey, 180 of the customers often use coupons.

to the nearest percent, what is a good estimate of the percentage of all customers who often use coupons?

Suppose that a households monthly water bill (in dollars) is a linear function of the amount of water the household uses (in hundreds of cubic feet, hcf). when graphed, the function gives a line with slope of 1.65. if the monthly cost for 13 hcf is $46.10 what is the monthly cost for 19 hcf?