Abox of peanut-butter crackers was divided evenly among 6 children. each child got 9 crackers. how many crackers were in the box?

If a and b are the measures of two first quadrant angles and sin a = 4/9 and sin b = 2/5 find sin(a+b).

Each of the walls of a room with square dimensions has been built with two pieces of sheetrock, a smaller one and a larger one. the length of all the smaller ones is the same and is stored in the variable small. similarly, the length of all the larger ones is the same and is stored in the variable large. write a single expression whose value is the total area of this room. do not use any method invocations.

The ratio of the measures of the three angles in a triangle is 2: 9: 4. find the measures of the angels