Bought three books: 150, if one book cost 50% more than the other two combined what was the price of the more expensive book

Find the value of tan theta if sin theta = 12/13 and theta is in quadrant 2

Ibeg you to me 20. a reaction produces 4.93 l of oxygen, but was supposed to produce 1 mol of oxygen. what is the percent yield?

Sanjay solved the equation below. which property did he use to determine that 7x+42=42 is equivalent to 7(x+6)=42 7x+42=42 7x=0 x=0