Answer:
13
Step-by-step explanation:




Answer:
cheese
Step-by-step explanation:
Answer:
7.43
Step-by-step explanation:
the answer should be A because the sea level has rised
Answer:
3x^2-6x -3
Step-by-step explanation:
(2x^2-5x+1)+(x^2-x-4)
we sum all coefficient according to the exponent of the variable
2x^2-5x+1+x^2-x-4 = 3x^2-6x -3