A person holding a G P S device up to the sky. Red lines point from the G P S to satellites. Image by Javiersanp

In order to help us find our exact location, GPS uses signals that are broadcast from and interpreted by .
A.
airplanes . . . receivers
B.
balloons . . . software
C.
aerial photos . . . software
D.
satellites . . . receivers

Please select the best answer from the choices provided
A
B
C
D

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].

Iwould say d. eye contact and body language because you aren’t using any spoken communication. hope this : )

Dis the answer you perception is how you see the world