To decorate a cake, you make a shade of green icing using 33 drops of yellow food coloring for every 44 drops of blue food coloring. if you use 1212 drops of yellow food coloring, how many drops of blue food coloring would you need?

Simple it says you use 33 drops of yellow originally and 44 drops of blue it appears that each drops are 11  drops lesser (from blue to yellow). Therefore, add 11 to 1212 and you get your answer. 

Rounding decimals is very similar to rounding other numbers. if the hundredths and thousandths places of a decimal is forty-nine or less, they are dropped and the tenths place does not change. for example, rounding 0.843 to the nearest tenth would give 0.8. , your welcome !