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?

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?

Quantity A: 20% of

Quantity B: 30% of

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:

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

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

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

Billy scored a on his last math exam. If there were one hundred questions on the test, what is the ratio of his correct answers to total questions? Express the answer as a fraction, and simplify.