To find out how much money Jaden will earn for 4 lawn-mowing jobs and 6 pulling-weeds jobs, we can evaluate the expression \( 25l + 20w \) by substituting \( l = 4 \) and \( w = 6 \).
Now substituting the values into the expression:
\[ 25l + 20w = 25(4) + 20(6) \]
Calculating each term:
\[ 25(4) = 100 \] \[ 20(6) = 120 \]
Now, add the two results together:
\[ 100 + 120 = 220 \]
Therefore, Jaden will earn $220 for 4 lawn-mowing jobs and 6 pulling-weeds jobs.