What number times there self eqaul to 64

Find all the angles that satisfy the equation cos(θ)=32

Anew movie is released each year for 14 years to go along with a popular book series. each movie is 2 minutes longer than the last to go along with a plot twist. the first movie is 70 minutes long. use an arithmetic series formula to determine the total length of all 14 movies

3/4 + p = 1/2? i’m not sure how to solve it