There are 4 black rabbits and twice as many grey rabbits as brown rabbits. If there are 16 grey rabbits, then what is the ratio of brown to black rabbits?   2 to 1   8 to 4   16 to 4   Bill is 4 years older than Jill and 2 years younger than David. If Jill is 12, then what is the percent of years she is older than David?   None of the choices   18 to 12   9 to 6   Jason has 40 apples. He gives Jon 12 apples and Jeff 14 apples. What percentage of apples does Jason now have of the original 40?   35   26   14   What is 46 percent of 75?   34.5   None of the choices   35   4 boys have green eyes, 12 boys have blue, and 7 have brown. What is the ratio of boys who have blue eyes to those that don't?   12 to 7   12 to 11   12 to 4