Answer:
x = - 12, 3
Step-by-step explanation:
By tangent secant theorem:

Take the discount. Let's call it x%. Turn it into a fraction, and multiply it by the item. Let's call the item "i".
The amount discounted is

.
Now subtract this from the original cost of the item.
Therefore,

is the solution.
Answer:
4 5/6
Step-by-step explanation:
This is fairly simple. Just do 2x15 to get your answer 2x15=30. Explanation if it is 2 times longer you would do 2 and then when it says it is 15 diagonal that is where the 15 comes in and it would be 2x15. So your answer is 30
Answer:
5 cm
Step-by-step explanation:
radius is half of a diameter