Which is a plan to show that line m and line n are perpendicular? A. Find the lengths of m and n, and show that length m = –1 ÷ length n.

B. Find the slopes of m and n, and show that slope m = –1 × slope n.

C. Find the slopes of m and n, and show that slope m = –1 ÷ slope n.

D. Find the lengths of m and n, and show that length m = length n.

Seymour is twice as old as cassandra. if 16 is added to cassandra’s age and 16 is subtracted from seymour’s age, their ages become equal. what are their present ages? show !

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.

Nicole purchased a container of cashews that weighs 5 kilograms. zion purchased a container of cashews that weighs 4,900 grams. how many more grams of cashews did nicole purchase?