To find how much money Jaden will earn for 4 lawn-mowing jobs and 6 pulling-weeds jobs, we can substitute the values of \( l \) and \( w \) into the expression \( 25l + 20w \).
Given \( l = 4 \) and \( w = 6 \):
\[ Earnings = 25l + 20w \] \[ Earnings = 25(4) + 20(6) \] \[ Earnings = 100 + 120 \] \[ Earnings = 220 \]
Jaden will earn $220 for 4 lawn-mowing jobs and 6 pulling-weeds jobs.