Im getting confused with this easy problem.. shelly ate 4.2 ounces of trail mix. marshall ate 4.25 ounces of trail mix. how much did marshall eat? do u think its subtraction or addition?

Which interval for the graphed function contains the local maximum? [–3, –2] [–2, 0] [0, 2] [2, 4]

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.

Write a similarity statement for the similar triangles. afgh ~ a