Answer:
About 90 days
Explanation:
<em><u>Hope this helps!</u></em>
He developed the first polio vaccine.
Answer:
x = -1 / 3
Explanation:
-10.5x + 7 = 1.5x - 6x + 9 ( collecting like terms)
-10.5x + 7 = -4.5x + 9 (move the terms)
-10.5x + -4.5x + 9 (collect like terms calculate)
-6x = 2 (divide by both sides)
x = -1/3
:/
Trade across the Sahara became possible and it impacted West African empires by influencing them on a cultural level. The peak of Saharan trade extended from the 8th century until the early 17th century.
The main idea of this diagram is that the farmers needed money to plant crops . Hope this helps