Answer:
This is because to square a number just means to multiply it by itself. For example, (-2) squared is (-2)(-2) = 4. Note that this is positive because when you multiply two negative numbers you get a positive result.
Answer:
10%
Step-by-step explanation:
60% + 30%=90%
so they have 10%of the original amount left.
You forgot to put how long the original stick is
