Emily’s last water bill listed a previous reading of 7,123 ccf and a present reading of 7,171 ccf. her water company charges $0.73 per ccf of water. what should emily have been charged on her water bill?

It is given in the question that

Emily’s last water bill listed a previous reading of 7,123 ccf and a present reading of 7,171 ccf. Her water company charges $0.73 per ccf of water.

Therefore number of ccf  is

And company charges $0.73 per ccf.

So for 48 ccf, company charges

And that's the required answer .

a

step-by-step explanation:

the answer is a

graph #4 (last graph) depict the function   f(x)= -m(x-d)^1/5 i

step-by-step explanation:

we know that

m=slope

but in this function slope is -m that means slope is decreasing and it is decreasing by 1/5 points down the x-axis.

which is shown in graph four

a decreasing slope down x-axis by 1/5 points.

hence 4th graph is the right option for this.