1.

or if you mean (3x^3+5x^2+3x-7)+(8x-6x^2+6):

2.

2.5 = 2 5/10 as a Mixed fraction
To get a improper fraction, multiply the whole number with the denominator, and then add the numerator to the answer, giving the numerator (keep the denominator number)
2 x 10 = 20
20 + 5 = 25
25/10 is your answer
hope this helps
Answer:
Is all of them !!
Step-by-step explanation:
Because they all have asymptote
The correct answer is C. <span>Similar polygons are never congruent.</span>
The answer would be 24 pints