What is the Sahel?
a. a wide area of dry land located along the southern edge of the Saharaa
b. a landform found only in Africa, it is a cross between a mountain and a plateauan
c. an African territory that is of historical importancea
d. a climatic event with high winds and heavy rains

D. a climate event with high winds and heavy rains

C. An African territory that is if historical importance .

It is important because it became a key part of slave trade during colonial times.

Amath expression is a collection of one or more terms, which are separated by the signs ( + , - , x , / ).example :   8+b8+b  or  a−3a−3in algebra, an equation is a mathematical statement with two expressions where, each expression is separated by an equal (=) sign. variables can be present on both the sides of the equality (=) sign and we use letters to denote such variables.example 1:   x=4+2x=4+2  , [here, we can observe that the variable is present only on one side of the equation].example 2:   2x+3=x+42x+3=x+4  , [here, we can observe that the variables are present on both side of the equation].

Answer mauritania is in the northwestern part of african, meaning its in the western hemisphere, and how do i know/ the map showed me so; ///: )