If kris takes 1/3 of the pie and Keith takes 3/3 how much would kris have? this impossible I got it wrong the first time lol

Volume of cylinder with a radius of 8cm and height of 25 cm

Need this at the city museum, child admission is 6 and adult admission is 9.20. on tuesday, 132 tickets were sold for a total sales of 961.60. how many adult tickets were sold that day?

Find the area of the surface obtained by rotating the curve z=4e^2y from y = 0 to y =1 about the y-axis. the area is square units