Kyle wants to buy a hat for $5.75 a t-shirt for 7.65 and a keychain for $3.15. He has $16. How much more money does he need?

Which of these is and example of a literal equation? a) 6+30=6^2 b)3x-4y c)12=9+3x d)ax-by=k

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.

The amount of data left on the cell phone six gb for 81.5 gb of data is used how much data is available at the beginning of the cycle