If bert the bat travels eastward at 40 mph with a tail wind of 6 mph, what is his actual speed?

Because the two speeds are going in the same direction, you add them, so his actual speed is 46 mph.

Idon’t actually know but have you asked google yet

the law of definite proportions states samples of a compound will always contain the same proportion of elements by mass. in other words, a given compound will always contain the same elements in the same proportions by mass.the law of multiple proportions states when two elements combine with each other to form more than one compound, then the weights of one element that combine with a fixed weight of the other are in a ratio of small whole numbers.