Awall is 26 inches wide. twelve inches is concrete, 9 inches is brick, and 5 inches is limestone. what fraction of the wall is concrete?

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?

Ineed in figuring out this problem.

Ade and abc are similar. which best explains why the slope of the line between points a and d is the same as the slope between points a and b?