Find the measure of the missing angles​

Which choice represents the sample space ,s for this event

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

The graph and table shows the relationship between y, the number of words jean has typed for her essay and x, the number of minutes she has been typing on the computer. according to the line of best fit, about how many words will jean have typed when she completes 60 minutes of typing? 2,500 2,750 3,000 3,250