Trigonometry functions: given: opposite of angle a is 5 adjacent to angle a is 4 how do i find the measure of angle a using the cotangent ratio?

An episode of a television show is 60 minutes long when it originally airs with commercials. on a dvd without commercials, the episode is only 417 minutes long. how many1-minute commercials did the episode include when it originally aired? write and solve an equation to justify your answer.

Astore sells two types of radios. one type sells $87 and the other for $119. if 25 were sold and the sales were $2495, how many of the $87 radios were sold a) 5 b) 20 c) 15 d)10

If private savings 'v' = 0.75s and total savings 's' equals $4.20 billion, solve for public and private savings.