Energy is related to mass by: E = mc2
If we want to know the mass converted to energy per second, we can express this relation as
L = Δmc2,
and solve for Δm, where Δm represents the change in mass per second.
Δm =
L
(3 ✕ 108 m/s)2

myth. it was once thought that animals, including cats and dogs, could only see in black and white. however, scientists have proven this to be a myth. in all animals, including humans, the perception of colour is determined by the presence of cells in the eye called cone photoreceptors.

it's a b and

305.7

explanation:

density =m/v

density =917/3.00

density = 305.

approximately = 305.7

in four significant figures