-4f - 9 f + 15 I'm trying to find out this question so my grade can go up from a f to something like a c or b please help me​

Which of the following circles have their centers in the third quadrant?

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)

Charlie tosses five coins. what is the probability that all five coins will land tails up.