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Math·Algebra·Linear equations in two variables

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One gallon of sealant costs $13 and will cover $300$ square feet of a surface. A deck has a total surface area of $d$ square feet. Which equation represents the cost $c$, in dollars, of the sealant needed to cover the deck twice?

A

$c=\frac{300d}{13}$

B

$c=\frac{600d}{13}$

C

$c=13\left(\frac{d}{150}\right)$

D

$c=13\left(\frac{d}{300}\right)$