Thanks for helping me out

Emma will roll two number cubes labeled 1 through 6. she will record the sum of the two numbers after each roll. she will roll the two cubes 540 times. how many times should emma expect the sum to equal 5?

The volume of a cube-shaped shipping container is 13,824 cubic inches. find the edge length of the shipping container.

Solve the triangle. a = 21°, c = 105°, c = 5