Carlos buys a roast that weighs 2.5 pounds and costs $4.36 a pound. Find the amount he pays.​

Abby is preparing fruit punch for her party. she starts with a bowl filled with liquid that has 1/2 fruit juice and 1/2 sprite, but she decides it's too fruity. so she pours out 1/4 of the liquid, and then fills the bowl up again with sprite. what fraction of the punch is now sprite?

To finance her community college education, sarah takes out a loan for $2900. after a year sarah decides to pay off the interest, which is 4% of $2900. how much will she pay

Find the volume of the solid bounded by the plane z=0 and the paraboloid z=1-x^2 –y^2