To find out how much money Jacqueline will earn this week, we need to evaluate the expression \(15l + 12s\) using the values \(l = 5\) and \(s = 7\).
Substituting the given values into the expression:
\[ 15l + 12s = 15(5) + 12(7) \]
Calculating each term separately:
\[ 15(5) = 75 \] \[ 12(7) = 84 \]
Now, adding these two results together:
\[ 75 + 84 = 159 \]
Thus, the total amount of money Jacqueline will earn this week is $159.