It takes 6 cuhes to build a staircase with 3 steps. how many cubes will be needee for 11 steps

How do i work this problem out using the equation a=pe^rt

Due to bad planning, two of the local schools have their annual plays on the same weekend. while 457 people attend one, and 372 attend the other, only 104 people were able to attend both. how many people went to at least one play?

The angle of elevation from point a to the top of a cliff is 38 degrees . if point a is 80 feet from the base of the cliff , how high is the cliff ?