After how many hours does he break even?

The length of a shadow of the building is 36m. the length of the pole, which is perpendicular to the ground, is 1.9m. the length of the pole's shadow is 1.52m. what is the height of the building?

The measure of angle 0 is 600 degrees

Which equation can be used to measure the density of water in a spherical water tank? let w represent the number of water particles within the region.