To find Alicia's earnings for a job that takes 3 hours, we can use the formula for her earnings:
\[ E = 65h + 100 \]
where \( E \) is her total earnings and \( h \) is the number of hours worked. We will evaluate this formula for \( h = 3 \).
First, substitute \( h = 3 \) into the equation:
\[ E = 65(3) + 100 \]
Now calculate \( 65(3) \):
\[ 65 \times 3 = 195 \]
Now, substitute this value back into the equation:
\[ E = 195 + 100 = 295 \]
Thus, Alicia will earn $295 for a job that takes 3 hours.