Since ur using r as a variable the answer is r = 7.
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.
Since it's an equilateral triangle, all of the angles are the same. Since its perimeter we just need to add. So 3.5+3.5+3.5= 10.5
So the answer is 10.5
An expression is a mat scentence but not a complet on.Example:2x3. Or a x 5. I hope I said it clearly for you.
Answer:
40,000,000
42,199,279
^
Closer to 40,000,000, if it was 5 or over, it would round up to 30,000,000