Using the set-up seen here, ms. garcia places a golf ball between the globe and the flashlight. turning off the lights in the room, she shines a flashlight from behind the golf ball. the students observe the shadow of the golf ball falling on the globe. what is this setup trying to model?
a) a solar eclipse
b) the solar system
c) the idea of gravity
d) the surface of the moon

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].

D. i believe that doesn't even exist.

Yep, we’re not gonna last that long sadly