Un tren disminuye la velocidad de 80 pies a 30 pies en 10 segundos cual es su aceleración

Select the best attribute for the angle pair formed by two parallel lines intersected by a transversal.

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.

Susie wants to take her friend out for lunch.she wants to spend $9.75 each person. how much will she spend in all.