The expression "15 times the sum of 7 + 94" can be represented mathematically as:
\[ 15 \times (7 + 94) \]
or, simplified further:
\[ 15 \times 101 \]
You can also simply calculate it:
\[ 15 \times 101 = 1515 \]
So, the expression itself is \( 15 \times (7 + 94) \).