Answer:
Firstly, the moon keeps changing its shape with 4 distinct moon phases that depend on the position of the moon and also on the position of the Earth. The moon orbits around the planet Earth, and the Earth orbits around the Sun.
Step-by-step explanation:
Answer:
20%-X=a
Step-by-step explanation:
So if there is a toy that cost $50 and it was 20% off it would then cost $40
The altitude of a triangle is a line segment through a vertex and perpendicular to a line containing the side opposite the vertex.
Answer: 
Answer:
15
Step-by-step explanation:
Let's call the mystery number x.
Hope this helps!
Answer:
Step-by-step explanation:
a,a, and a
