Which polynomial represents the sum below 2x^2+5x+4 + 5x^2+8x a. 7x2 + 13x + 4 b. 2x2 + 10x + 12 c. 7x2 + 40x + 4 d. 10x2 + 13x + 4

The answer is a: 7x^2 + 13x + 4

To find the simplified version of 2x^2 + 5x + 4 + 5x^2 + 8x, just combine like terms. 2 and 5 make 7x^2, 5 and 8 make 13x, and 4 is a constant that stays the same. Put them in order of degree (exponent) largest to smallest. Tis makes 7x^2 + 13x + 4.

A is your answer 7 x^2 +13 x +4

it is b

Step-by-step explanation:

To write 2.467 as a percent have to remember that 1 equal 100% and that what you need to do is just to multiply the number by 100 and add at the end symbol % .

2.467 * 100 = 246.7%  

And finally we have:  

2.467 as a percent equals 246.7%