Answer:
10x+23 (pretty sure) and the * means multiply
Step-by-step explanation:

Answer:

Explanation:
If a side has a bracket [] then it is less than or equal to, meaning that it can reach that exact number.
However, if a side has a parentheses () then it is simply less than. It cannot be that exact number, but it can be even slightly less than that number.
Answer:
if im not wrong its 1 and 2