28.5g of iron is added to a graduated cylinder containing 45.50ml of water. the water level rises to the 49.10ml mark, from this information calculate the density of iron.

Simplify 5 square root of 7 end root plus 12 square root of 6 end root minus 10 square root of 7 end root minus 5 square root of 6 . (1 point) 5 square root of 14 end root minus 7 square root of 12 5 square root of 7 end root minus 7 square root of 6 7 square root of 12 end root minus 5 square root of 14 7 square root of 6 end root minus 5 square root of 7

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

Jordan got 27 out of 90 correct on his test . what fraction of the marks did her get correct