How much did the english and welsh immigration population decrease from 1700 to 1790?

  In the given time frame from 1700 to 1790 the population of England and Wales did not decreased at all, on contrary, the population in England and Wales actually was rising steadily, and by the end of this period there was a fast increase in the population, similar to the ''baby boom'' period few centuries afterwards.

whose power in the senate is equal to the power of the speaker of the house?

they wanted the u.s. to fight on the side of the central powers.