(20*3)+13

The calculation \( (20 \times 3) + 13 \) can be solved step-by-step:

1. First, calculate \( 20 \times 3 = 60 \).
2. Then, add 13: \( 60 + 13 = 73 \).

So, \( (20 \times 3) + 13 = 73 \).