John is moving up to the attic and wants to paint one wall blue. The wall is a triangle with a base of 21 feet and a height of 8 feet. What is the area of the wall to be painted? A. 42 ft2
B. 62 ft2
C. 29 ft2
D. 84 ft2

7x+8y=-18, 4x-9y=-3 solve the system of equations

Atrucker had a load of grain containing 2 tons. she unloaded 1 ton and 1,200 pounds at the warehouse. how much grain does she still have left on the truck?

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?