Eva bought 21 books. 2/3 of the books are fiction. How many fiction books did she buy?

What is the equation and solution for the sentence? the sum of a number and thirty-one is one hundred thirteen. write the equation as n-31=113 and subtract 31 from both sides. the answer is 82. write the equation as n+31=113 and subtract 31 from both sides. the answer is 82. write the equation as n+31=113 and add 31 to both sides. the answer is 144. write the equation as n-31=113 and add 31 to both sides. the answer is 144.

Given the equation f(x)=a(b)x where the initial value is 40 and the growth rate is 20% what is f(4)

Sasha drank 8 bottles of water everyday for a week. how many bottles of water did she drink in total?