To find out how much money Jaden will earn for 4 lawn-mowing jobs and 6 pulling-weeds jobs, we can use the expression \( 25l + 20w \).
Substituting \( l = 4 \) and \( w = 6 \):
\[ 25(4) + 20(6) \]
Calculating this step-by-step:
- Calculate \( 25(4) \):
\[ 25 \times 4 = 100 \]
- Calculate \( 20(6) \):
\[ 20 \times 6 = 120 \]
- Now add the two results together:
\[ 100 + 120 = 220 \]
So, Jaden will earn $220 for 4 lawn-mowing jobs and 6 pulling-weeds jobs.