24) Which of the following equations is correctly balanced? HELP ME ASAP PLEASE

A150 w lamp emits light of wavelength 590 nm uniformly in all directions. what is the photon flux (photons per unit area per unit time) on a small screen at a distance 2.3 m from the lamp? assume the photons are uniformly distributed over the surface of a sphere of radius 2.3 m.

Curious carl calculated the density of a cube to be 4.50 g/cm3. what is the density of the cube in g/l?

Looking at this barometer, is the air pressure high or low? what type of weather would you expect? high, bad low, bad high, good low, good