10 is what % of 50?

90% of 100 is what number

At the ice cream shop, there are 14 shakes sold for every 6 malts. What is the ratio of malts to total items sold?

36 is 30% of what number?

A jacket is marked down from $25 to $19. What is the percent change? 

A birthday party host planned for 20 people, but 17 actually attended. What is the percent error?

Mrs. Smith deposits $2000 in an account that earns 5% interest. How much is Mrs. Smith's total investment worth after 8 years?

What is 75% as a decimal?