What value of will make this expression equal to 0? 5( +2.25)2.5

There are 45 questions on your math exam. you answered 810 of them correctly. how many questions did you answer correctly?

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)

Could someone me with this question i’ve been stuck on it for 20 minutes