Which valve is closest to 85% of 25

Need on this geometry question. explain how you did it.

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

Graph the system of inequalities presented here on your own paper, then use your graph to answer the following questions: y < 4x − 8 y is greater than or equal to negative 5 over 2 times x plus 5 part a: describe the graph of the system, including shading and the types of lines graphed. provide a description of the solution area. (6 points) part b: is the point (5, −8) included in the solution area for the system? justify your answer mathematically. (4 points)