Will give !

the bridgeport water department has a monthly service charge of $13.20 and a usage charge of $1.42 for every 100 cubic feet of water. which of the following equations can be used to determine the monthly water bill of a bridgeport resident?

(let x represent the amount of water used in hundreds of cubic feet and y represent the monthly cost.)

a. y = 1.42x - 13.20

b. y = 14.62x

c. y = 1.42x + 13.20

d. y = 0.0142x + 13.20

Use the elimination method to find the solution to the system of equations. 2x - 3y = -9 -x + 3y = 6

International calls require the use of a country code. many country codes a 3-digit numbers. country codes do not begin with a 0 or 1. there are no restrictions on the second and third digits. how many different 3-digit country codes are possible?

Max recorded the heights of 500 male humans. he found that the heights were normally distributed around a mean of 177 centimeters. which statements about max’s data must be true? a) the median of max’s data is 250 b) more than half of the data points max recorded were 177 centimeters. c) a data point chosen at random is as likely to be above the mean as it is to be below the mean. d) every height within three standard deviations of the mean is equally likely to be chosen if a data point is selected at random.