Rene is in the band. As a part of a fundraiser, she is selling tickets to a spaghetti dinner. The tickets cost $7 for adults and $4 for children. If Rene sold 57 tickets for a total of $303, which of the following systems can be used to determine how many adult tickets, a, and children's tickets, c, Rene sold? *

The graph of the function f(x) = (x + 2)(x + 6) is shown below. which statement about the function is true? the function is positive for all real values of x where x > –4. the function is negative for all real values of x where –6 < x < –2. the function is positive for all real values of x where x < –6 or x > –3. the function is negative for all real values of x where x < –2.