F(n) = -f(n − 1). 4; f(1) = 2
First five terms in the sequence

How can you construct perpendicular lines and prove theorems about perpendicular lines

This is about circle theorems. someone asap : (

During the election for class president, 40% of the students voted for kellen, and 60% of the students voted for robbie. 500 students voted in total. how many more students voted for robbie than for kellen? answer with work : )