In the lake, a sailboat casts a shadow of 4 yards. a buoy that is 2 feet tall casts a shadow of 1 foot.
what is the height of the sailboat?

Janet is mixing a 15% glucose solution with a 35% glucose solution. this mixture produces 35 liters of a 19% glucose solution. how many liters of the 15% solution is januet using in the mixture? a. 25 liters c. 28 liters b. 7 liters d. 10 liters

Bob is putting books on a shelf and takes a break after filling 18 1/2 inches on the book shelf. the book shelf is now 2/3 full. how long is the entire bookshelf?

Which expression is equivalent to -12(3x-3/4)