Answer: 8x + 6a
Step-by-step explanation: Combine your "x" terms and your "a" terms.
So 3x + 5x is 8x and 2a + 4a is 6a.
So the answer is 8x + 6a.
I believe the answer would be about 3.931 million square miles.
Informally: When you multiply a whole number times itself, the resulting product is called a square number, or a perfect square or simply "a square." So 1, 4, 9, 16, 25, 36, 49, 64, 81, 100, 121, 144, and so on, are all square numbers
SO we need 5 numbers that equal to 20, with 5 being the middle number, and ones being the most used number so
1 1 5 x y
According to this, x and y must equal 13 and both be bigger then 5. Because we can rule out every other number, x and y must be 6 and 7.
Your 5 numbers are 1, 1, 5, 6, 7.
