50 students took an exam. There were 4 A's, 9 B's, 15 C's, 8 D's, and the rest of the students failed. What percent of the students failed?

Choose the answer which best converts the following percentage into a fraction:

%

Quantity A: 20% of

Quantity B: 30% of

Choose the answer which best converts the following percentage into a fraction:

%

Choose the answer which best expresses the following fraction as a percentage, to the nearest tenth of a percent:

Choose the answer which best expresses the following fraction as a percentage, to the nearest tenth of a percent:

Choose the answer below which best expresses the following fraction as a percentage:

Choose the answer below which best expresses the following fraction as a percentage:

What percentage of a solution is blood if it contains ml blood and ml water? Round to the nearest thousandth?

Choose the answer which best converts the following percentage into a fraction (the answer should be simplified):