Answer
$\text{Two times the sum of}$ $l$ $\text{and}$ $w$$\text{.}$
Work Step by Step
"The sum of" is a phrase used to express addition. Since $l$ is added to $w$, saying $\text{the sum of}$ $l$ $\text{and}$ $w$ is appropriate. When we say $\text{two times the sum}$, we are expressing that this sum is multiplied by $2$
