If 5.50 for 6.25 pound of pumpkin what’s the coat for 1 pound

Which matrix can be multiplied to the left of a vector matrix to get a new vector matrix ?

What is the percent of increase for a population that changed from 438,000 to 561,000

Turner's mom measured his room to see how long the wallpaper border needed to be. if two walls are 15 feet long and two walls are 12 feet long, how long should the strip of border be cut?