Answer:
4 cm
Step-by-step explanation:

statements 13-L , 15-F , 6-G , and 10-C are true statements
hope this helps!
+ means: More than, Add, In Addition, Increased, In Excess, Greater.
<span>- means: Decreased by, Less than, Subtract, Difference, Diminished, </span>
<span>........Reduced, Remainder. </span>
<span>• or x means: Times as much, Percent of, Multiply, Product, Interest on. </span>
<span>/ or ÷ means: Divide, Quotient, Per. </span>
<span>(...) means: Quantity. </span>
<span>= means: Is, Was, Equal, Will be, Results.</span>