To find the cost of sending a 2-pound package using the given formula \( c = 2.03w + 14.24 \), where \( w \) is the weight of the package in pounds, you can substitute \( w = 2 \) into the formula.
\[ c = 2.03(2) + 14.24 \]
Now, perform the multiplication:
\[ c = 4.06 + 14.24 \]
Next, add these two amounts together:
\[ c = 18.30 \]
So, the cost to send a 2-pound package overnight is $18.30.