What can you learn from the two figures?

Many factors are involved in making a forecast. To illustrate, use the following equation to make a monthly forecast of car sales $($in thousands$)$ in one area given Advertising $=$ $$6\mathrm{.}2($millions$),$ Economic Growth $=2\mathrm{.}8\%,(\mathrm{.}028),$ and Level of Competition $=\mathrm{.}6$