15 points if you answer the question

The mnemonic SOH CAH TOA helps you remember that

... Sin = Opposite/Hypotenuse

The side opposite angle K is marked with length 5. The hypotenuse KM is marked with length 10. Using the above relationship ...

... sin(∠K) = 5/10 = 1/2

The first choice is appropriate:

1     sepan

2     encuentren

3     tenga

4     hable

5   parezca

6   llegue

you can first factor out the n to get n(1+5). we know that 1+5 is 6, so we just have 6n.