Brainliest asap! answer theres 2 questions

Avegetable garden and a surrounding path are shaped like a square together are 12 ft wide. the path is 1 feet wide. if one bag of gravel covers 8 square feet, how manu bags are needed to cover the path? round your answers to the nearest tenth.

Combine like terms to make a simpler expression 3z+z

Rewrite the following quadratic functions in intercept or factored form. show your work. f(x) = 3x^2 - 12