One day she took 4 hours longer than she expected, and therefore she gave medication dosage to 10 patients less per hour than anticipated. How long did she expect to give medication dosage to 80 patients?

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?

Find the greatest common factor of the followig monomials 21u^5v,3u^4v^6, and 3u^2v^5

Point r divides in the ratio 1 : 5. if the coordinates of e and f are (4, 8) and (11, 4), respectively, what are the coordinates of r to two decimal places?