All of the following are famous modern economists except which one ?
a- karl marx
b- adam smith
c- sigmund freud
d- john maynard keynes

What is the most famous discovery attributed to isaac newton ? a) barometer b) thermometer c) laws of universal gravitation d) telescope

Which one of these were common aspects of war efforts during world war 1 1. rationing 2. war bonds 3. using schools as military facilities 4. child soldiers 5. women working in factories circle all that apply

He three-fifths compromise, which was made at the constitutional convention, represented differences of opinions over which issues?