7:7&₽99

I’m not sure what you want with "7:7&₽99". Could you clarify the task? For example, is it a math/computer problem, a puzzle, or something about formatting or currency?

A couple of common interpretations you might be aiming for:

• If ":" means division and "&" means bitwise AND:
  • 7:7 = 7/7 = 1
  • 1 & 99 (bitwise) = 1
  • Result: 1
• If ":" is just a separator for a ratio (7:7 = 1) and "₽99" is just currency with no operation, then it’s not a well-defined expression to compute.

If you intended something else (like a programming problem, a puzzle, or a specific exam question format), please specify the context and what operation you want to perform. I can tailor the solution or walk you through it.