When Ricardo was years old, he was 56 inches tall. Ricardo is now layears old
and he is 62 inches tall. Determine the
percent of increase in Ricardo's height to
the nearest tenth.

Find the perimeter of the triangle with vertices  d(3, 4),  e(8, 7), and  f(5, 9). do not round before calculating the perimeter. after calculating the perimeter, round your answer to the nearest tenth.  

The ratio of white marbles to blue marbles in connie's bag of marbles is equal to 2: 3 there are more than 20 marbles in the bag . what is a possible number of white marbles and blue marbles in the bag.

Figure abcd is a trapezoid with point a (0, -4). what rule would rotate the figure 270° clockwise, and what coordinate would be the output for point a'?