Helen's age is two times Thomas's age. The sum of their ages is 57. What is Thomas's age? years old​

Given f(x) = x − 7 and g(x) = x2 . find g(f( g(f(4))

Toyland is having a sale. all items are 20% off. how much will you save on an item that usually sells for 95$ explain your

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.