Which best describes the relationship between the successive terms in the sequence below?

–3.2, 4.8, –7.2, 10.8,
a)the terms have a common difference of 8
b)the terms have a common difference of 1.6.
c)the terms have a common ratio of –1.5.
d)the terms have a common ratio of –0.67.

Xto the second power plus 14x plus 48. what are the factors? we are doing factoring trinomials with a=1

Which expression converts 45 degree to radians

Set $r$ is a set of rectangles such that (1) only the grid points shown here are used as vertices, (2) all sides are vertical or horizontal and (3) no two rectangles in the set are congruent. if $r$ contains the maximum possible number of rectangles given these conditions, what fraction of the rectangles in set $r$ are squares? express your answer as a common fraction.