Because angle L is the common angle between lines JL and KL, your answer is angle L. Hope that made sense.
15x^6/20y^5 * 6y^2/5x^4 when simplified becomes 9x^2/10y^3
Let b be the initial amount of books. Steve sells half of his books, so the number of Steve's books become

Then, he buys 6 more, so the number increases by 6:

This number is now 14, so you have

Subtract 6 from both sides:

Multiply both sides by 2:

P(4)= 1/8
This is because there are 8 equal parts and 4 is just one of those 8 parts.
The answer is C because it is on the x axis and it is positive