Answer:
E is equal to 20 and F is equal to 50. 20(E)+50(F)=70
If the forces are equal, then the amount of work is dependent on the distance od C
Infinitely many, because if you simplified the right side, it would equal the left side.
Answer:
All are correct.
Step-by-step explanation:
Let x be the number of movies and y be the number of newly released video games.
Larry has a gift card worth 400 for a local entertainment store Movies cost $20 each and newly released video games cost $50 each.

Larry must purchase at least nine items.

Check both inequalities of all given ordered pairs.
For (5,6),


Point (5,6) satisfy both inequalities.
For (10,4),


Point (10,4) satisfy both inequalities.
For (20,0),


Point (20,0) satisfy both inequalities.
For (15,2),


Point (15,2) satisfy both inequalities.
Therefore, all combination of movies and newly released video games Larry could purchase using his gift card.