Indentured servitude grew out of what other economic system of landholding?
a. feudalism
b. share-holding
c. agrarian communes
d. contractual land grants

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

during the 20th century, the role of the vice president has evolved into more of an executive branch position. now, the vice president is usually seen as an integral part of a president's administration and presides over the senate only on ceremonial occasions or when a tie-breaking vote may be needed.