25% decrease because if you multiply 20x.25 you get 5 and you minus the 5 from 20 books and you get 15 books
Answer:
x = 10 and x = -10
Step-by-step explanation:
Given the function

This function is undefied when the denominator equals to 0. Find these values for x:

This means that vertical lines x = 10 and x = -10 are vertical asymptotes (the graph of the function f(x) cannot meet these lines because this function is undefined at x = 10 and x = -10)
Answer:
1/10x * 1/10x
Step-by-step explanation:
Writing a term with negative exponents is the same as putting it in a fraction.
10x^-1 = 1/10x
so the expression would be
1/10x * 1/10x
Answer:
On what?
Step-by-step explanation:
Let x, y be numbers.
The addition identity property states that 0 + x = x.
The commutative property states that x + y = y + x