Answer:
Values of x are: x=0 or x=-3 or x=-12
Step-by-step explanation:
The equation given to solve using zero product property is 
Zero property rule states that if ab=0 then a=0 or b=0
Taking x common from the equation:

Applying zero product rule

Now, solving 
Using quadratic formula to find value of x

Putting values

So, Values of x are: x=0 or x=-3 or x=-12
Answer:
The number of bicycles in the store is 
Step-by-step explanation:
Let
x------> the number of bicycles
y-----> the number of tricycles
we know that
The bicycles has two wheels and the tricycles has three wheels
so
------> equation A
------> equation B
substitute equation B in equation A and solve for y
Find the value of x

subtracting 9.1 - 12.9 is -3.8
The given function is

The inverse function is

To get the inverse, we swap each x and y coordinate.
The rule is 
So that's why the point (0,1) becomes (1,0) for instance.
Answer:
x= 85 is the answer. ( because exterior angle of a triangle is equal to 2 non adjacent interior angle of a triangle..)