About how many slaves were imported to the americas between 1493 and 1810

With an american government question

What impact did improvements in farming technology near the end of the nineteenth century have on the american economy? a. more energy was needed to power equipment, creating the renewable energy industry. b. less labor was necessary on farms, leading workers to pursue other jobs. c. less money was invested in farming as many locally owned farms went bankrupt. d. more demand for agricultural products reduced the price of food and animal products.

What do these fatwas indicate with regard to the balance between practical legal reasoning and religious dictates answers?