To go to dance class at 6: 45p. m. bus, kelly needs 35 minutes to walk home from a friend's house,30 minutes for dinner, and 20 minutes to drive to the class. to make class on time, what is the latest time she should leave her friend's house? what is the equation for this problem?

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.

Identify the expression equivalent to 4(x + x + 7) − 2x + 8 − 4 by substituting x = 1 and x = 2.

Which graph represents the linear function below? y-4= (4/3)(x-2)