Which set of ordered pairs (x, y) could represent a linear function? A = {(-8,9), (-2,0), (1, -3), (3, -6)}
B = {(1, -5), (4,1), (5,3), (7,7)}
C= {(-7, -7), (-3,-4), (0,-1), (4,2)}
D = {(3,3), (5,4), (7,6), (9,7)}

What is the missing constant term in the perfect square that starts with x^2 -20x

For one history test, keith had to answer 40 questions. of these 40 questions, keith answered 28 of them correctly. what percent did keith get on his history test? round your answer to the nearest tenth if necessary

The school that imani goes to is selling tickets to the annual dance competition. on the first day of the ticket sales the school sold 7 adult tickets and 5 child tickets for a total of $96. the school took in $40 on the second day by seling 3 adult tickets . find the price of an adult ticket and the price of a child ticket. solve by using substitution elimination college prep algebra math heres the 2 equations i came up with 7x+5y=96 and 3x+2y= -40 show all workiv be stuck on this.