Determine which relation is a function. O {(-5, 1), (-2, 0), (-1, 1), (2, 4), (6,3)}
O {(-5, 3), (-2, 0), (-1, 2), (6,4), (6,3)}
O {(-5, 1), (-5, 0), (-2, 1), (-1, 4), (6, 2)}
O {(-5, 1), (-2, 0), (-2, 2), (3, 4), (6, 2)}

Scrub a dub toothbrushes are $4.00 each. there is a 10% discount, but there is also a 6% sales tax after the discount is applied. what is the new price after tax? round to the nearest penny

For f(x)=2x+3 and g(x)=x^2- 8 find (f+g) (x)

Since opening night, attendance at play a has increased steadily, while attendance at play b first rose and then fell. equations modeling the daily attendance y at each play are shown below, where x is the number of days since opening night. on what day(s) was the attendance the same at both plays? what was the attendance? play a: y = 8x + 191 play b: y = -x^2 + 26x + 126