What is the difference of the two polynomials?
(7y2 + 6xy) – (–2xy + 3)
a7y2 + 4xy – 3
b7y2 + 8xy – 3
c7y2 + 4xy + 3
d7y2 + 8xy + 3

Your friend swims on the school team. in his first four races, his times are 24.7, 23.5, 25.6, and 27.2 seconds. which time listed for his next race would make the range larger?

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

Which type of graph would allow us to compare the median number of teeth for mammals and reptiles easily