Chloe bought 5 sets of books. She donated 9 of her books to her school. She has 26 books left. How many books were in each set? please help

(note i put the graph in so plz )the graph shows the amount of water that remains in a barrel after it begins to leak. the variable x represents the number of days that have passed since the barrel was filled, and y represents the number of gallons of water that remain in the barrel. what is the slope of the line

The lengths of all sides of a triangle are integers when measured in decimeters. one of the sides has length of 1 dm and another of 3 dm. find the perimeter of the triangle.'

What is the solution to the equation e3x=12? round your answer to the nearest hundredth