80% of what number is 960? Answer pls

Complete the solution of the equation. find the value of y when x equals to 1 9x-5y=29

Varies inversely with x. if y=8.5 when x=-1 find x when y=-1

Graph the system of inequalities presented here on your own paper, then use your graph to answer the following questions: y > 2x + 3y is less than negative 3 over 2 times x minus 4part 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 (â’4, 6) included in the solution area for the system? justify your answer mathematically. (4 points)