Which was one of the economic problems that the united states was facing during the 1790s? a. the federal government had borrowed a substantial amount of money to build washington, d. c. and had a large debt. b. the federal government had no means to collect taxes to pay for government services. c. the federal government had a budget surplus and did not know how to spend its extra money. d. the federal and state governments needed to repay money they had borrowed to pay for the revolutionary war.

the answer is d

( i just had this question )

the correct answer is the following is a list of inventions made in the medieval islamic world, especially during the "islamic golden age" (8th to 13th centuries),[1][2] as well as the late medieval period, especially in the emirate of granada and the ottoman empire.

science and technology in the islamic world adopted and preserved knowledge and technologies from contemporary and earlier civilizations, including persia, india, china, and greece-roman antiquity, while making a number of improvements and innovations.