Afunction f is periodic of period of period 5. if f(3)=10,f(0)=13, and f(-5)=31 then find f(13)

1. are the triangles similar and if so why? what is the value of x? show your work.

Does the problem involve permutations or? combinations? do not solve. the matching section of an exam has 4 questions and 7 possible answers. in how many different ways can a student answer the 4 ? questions, if none of the answer choices can be? repeated?

Ineed ! the person who answers and shows their work on they got the answer first will be marked the !