Mark each statement if it describes a muslim achievement in science and mathematics.
a. muslim scholars collected and translated the work of scholars from many parts of the world.
b. baghdad was a center of learning with a university and library.
c. al-khwarizmi simplified hindu numerals to make the system of numbers we use today.
d. muslim mathematicians invented the concept of zero.

Hich explains why the constitution gave congress the power to create a system of federal courts? the constitution wanted congress to share power with the judicial branch. the constitution anticipated the need for courts lower than the supreme court. the constitution wanted congress to share power with the appellate courts. the constitution anticipated the need for courts equal to the supreme court.