PLEASE HELPP I really need it this is a timed test

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

Someone answer asap for ! the following statements are true about the coins calvin and sasha have collected. * calvin and sasha has the same amount of money. * calvin has only quarters. * sasha has dimes, nickels, and pennies * calvin has the same number of quarters as sasha has dimes. * sasha has $1.95 in coins that are not dimes. exactly how many quarters does calvin have?

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