Marco has a bag of 50 colored marbles. there are 12 blue marbles,18 black marbles, and 20 red marbles. what is the ratio of the numbers of black marbles to the number of blue marbles

Polygons efgh and e′f′g′h′ are shown on the coordinate grid: what set of transformations is performed on efgh to form e′f′g′h′? a. a translation 1 unit to the left followed by a 90-degree counterclockwise rotation about the origin b. a translation 1 unit to the right followed by a 90-degree counterclockwise rotation about the origin c. a 90-degree clockwise rotation about the origin followed by a translation 2 units to the right d. a 90-degree clockwise rotation about the origin followed by a translation 2 units to the left

20 da is equal to a. 2,000 cm. b. 2 m. c. 20,000 cm. d. 20,000 mm

Which of the following answers is 5/25 simplified? 1/5 5/5 2/5 1/25