WILL GIVE BRAINLEST IF CORRECT :)) QUESTION IN PIC

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.

Use the x-intercept method to find all real solutions of the equation. -9x^3-7x^2-96x+36=3x^3+x^2-3x+8

What are the measures of ∠a, ∠b, ∠c and ∠d? explain how to find each of the angle measure.