Can you answer 8.6 * 7, 16 * 1.4, 12 * 14, 7.3 * 20. altogether 15 points

What are the solutions of the system? solve by graphing. y = -x^2 -6x - 7 y = 2

Need ! the total ticket sales for a high school basketball game were $2,260. the ticket price for students were $2.25 less than the adult ticket price. the number of adult tickets sold was 230, and the number of student tickets sold was 180. what was the price of an adult ticket?

Due to financial difficulties the owner of 4 skateboard stores is going to close 2 of his stores. based on the money earned at each store, which two stores should remain open?