The answer is D
Just did the topic test review on edgenuity
Answer:b. There is no way to filter out all illegal content but still allow access to constitutionally protected materials.
Explanation:
Sometimes trying to filter out negative content may require extensive filtering which may even prevent access to materials which are useful and actual protected because filtering may include exception of certain words for example which shouldn't appear when one searches the internet however those word may also be used in a protected information which doesn't carry explicit and harmful information so it end up being difficult to filter these words out.
Answer:
Trans-Sahara trade is one of the oldest trading networks in Africa.
Explanation:
The trading network requires to travel across the Sahara between sub-Saharan Africa and North Africa. Existing since prehistoric times, it reached its peak in the 8th century. In West Africa, the changes came in Ghana when the Almoravids sacked the city and the Ghāna Empire decline.
Mali rise in the 13th century as gold became the core of the trans-Saharan trade. The Trans-Sahara trade saw the rise of empires like Mali, Songhay, and Bono-Mansu. Expansion of urban centres and towns happened as Kano became one of the urban centres in West Africa. Trade also saw the rise of trading classes call the Wangara.
Well 4.3x3= 12.9
And 45x3= 135
So ones a decimal and ones not
