George's Ice Cream Shop Believes Most of Its Utilities Costs

Multiple Choice

George's Ice Cream Shop believes most of its utilities costs are mixed.George has collected the following data on gallons of ice cream used and related utilities' costs for the past six months:
$\begin{array}{lcc} & \begin{array}{c}\text { Number of } \\\text { gallons used }\end{array} & \text { Utilities cost } \\\hline \text { May } & 20 & \$ 700 \\\text { June } & 30 & 850 \\\text { July } & 40 & 1100 \\\text { August } & 30 & 975 \\\text { September } & 25 & 900 \\\text { October } & 22 & 720\end{array}$
George has run a regression analysis on the above information and has come up with the following data:
$\begin{array}{lc} &{\text { Coefficients }} \\\hline \text { Intercept } & 374.4318 \\\text { X Variable 1 } & 18.29545 \\\hline\end{array}$
Comparing the high/low method to regression analysis,to the nearest dollar,which of the following formulas would be the best predictor of total estimated mixed costs?

A) Y = $300 + $20x
B) Y = $374 + $18x
C) Y = $900 + $30x
D) Y = $18 + $374x