Aphone company charges for service according to the formula y=18+0.03x, where x is the number of minutes talked, and y is the monthly charge, in dollars. the slope in this equation is? the slope's units are: minutes dollars per minute dollars minutes per dollar

A general line is written as:

y = a*x + b

Where a is the slope and b is the y-intercept.

We will see that the slope is:

0.03 dollars per minute.

Here we have the equation:

y = 18 + 0.03*x

Such that y is in dollars and x is in minutes.

For the general form, we know that the slope is 0.03

And the units of the slope must be the quotient between the units of y and the units of x, so we will have that the slope is:

0.03 dollars/minute

or 0.03 dollars per minute.

Then the correct option is the second one.

If you want to learn more, you can read:

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to find the unit price, we must figure out the cost of one item (in this case one dish towel).   to do this, we divide the total price ($7.92) by the number of items bought (for this problem it is 8, because there are eight dish towels in one pack).  

$7.92/8 = $0.99

therefore, the unit price, or the price of one dish towel, is $0.99.

hope this !

introduction, methodology, results, discussion

step-by-step explanation:

an observational study is one which consists of actual observation to record data and then analyse the data.

there are a number of factors that should be analyzed before starting an observational study.

the main four factors are:

i) introduction:   this should be analysed to check whether the purpose of the study is correctly established and the data recorded are appropriate for the study

methodology:   the method of collecting the data, such as whether randomly selected, and whether sample size matches with the population to be studied, whether questions asked are easy to answer by common men, etc.

results: then results such as summary of data with comments should be studied thoroughly

discussion:   the last is the discussion, this can be either by management people or persons who are all interested , etc.