Please analyze the mathematical expressions and inequalities present in the image.

Mathematical Expressions and Inequalities:

• The image contains a number line with points labeled 'a', 'b', and 'c'.
• There is a mathematical expression: \( 3+\sqrt{7} \).
• Several inequalities are presented: \( -a+x>0 \), \( -b+x>0 \), and \( x-c<0 \).
• A phrase in Russian, "Поставить Х", which translates to "Put X" or "Place X", is also present, likely indicating a task related to the inequalities.
• A number "13" is visible at the bottom right.