Answer: 45
Step-by-step explanation:

17-34(304)$-5 this is what I put
3 + [_] ÷ 7 = 9
[_] ÷ 7 = 9 - 3
[_] = 6 x 7
[_] = 42
to check, just put 42 in the empty place and solve
01101000 01101001 00100000 01100110 01110010 01101001 01100101 01101110 01100100