Does "On May 16 China stated it had also received $457 million in donated money and goods for rescue efforts so far, including $83 million from 19 countries and four international organizations." contain the correct answer to "How many countries donated?"

A: yes

Does "The Gold Standard Act of 1900 abandoned the bimetallic standard and defined the dollar as 23.22 grains (1.505 g) of gold, equivalent to setting the price of 1 troy ounce of gold at $20.67." contain the correct answer to "How much was 1 troy ounce of gold worth?"

A: yes

Does "This article compares the properties of brains across the entire range of animal species, with the greatest attention to vertebrates." contain the correct answer to "Animals with a spine are called what?"

A:
yes