In total, how many members of congress are there in the united states?

There are a total of 535 Members of Congress. 100 serve in the U.S. Senate and 435 serve in the U.S. House of Representatives

Explanation:

no , per capita income is not a true measure of the development because: -it only tells us about average income not how income is distributed among the people.it only give us an idea of the economic aspect.it is only at the qualitative basis.moreover, income is not only the way of development other factors are also as much as important as income.

what is the tax base for the sales tax?

it should be (usually ) 6%