Four students had the following amounts of money in their pockets: $3.14, $.67, $2.45, and $1.14. how much money did they have total

If cos(2x) = tan^2(y), show that cos(2y) = tan^2(x).

What’s the volume of the triangular prism?

Which of the following are independent events? a) knowing that it is going to rain tomorrow, and bringing an umbrella to schoolb) knowing that you have to get up early tomorrow, and going to bed before 9 p.mc) knowing that it is going to rain tomorrow, and going to bed before 9 p.md) knowing that you have a test in school tomorrow, and studying thw night before