Y+ 8.3 = 12.7 show me how to got the answer

Solve each equation using the quadratic formula. find the exact solutions. 6n^2 + 4n - 11

Linda loans her friend $250 with a 5% monthly intrest rate. how much was the whole loan?

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)