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