Hii please help asap ill give brainliest thanks

You paint a 1/2 of a wall in 1/4 hour. how long will it take you to paint one wall

Ineed if you could explain and give me the answer you! this needs done

Identify which functions are linear or non-linear. a. f(x) = x2 + 1 b. f(x) = 2x + 5 c. f(x) = x 2 + 3 d. f(x) = 3 x + 7 e. f(x) = 4x + 10 2 - 5