Jack spends 1 1/3 as long on his homework as jill. last week jill sent 5 1/2 hours doing homework. how long did jack spenkd doing his homework?

If the ratio of sum of the first m and n terms of an ap is m2 : n2 , show that the ratio of its mth and nth terms is (2m − 1) : (2n − 1).

Shared decision making is always a positive strategy to take

In the diagram, a building cast a 35-ft shadow and a flagpole casts an 8-ft shadow. if the the flagpole is 18 ft tall, how tall is the building? round the the nearest tenth.