Answer:
C)
Explanation:
=(5x2+3x+4) + (5x2+5x-1)
=(5x2+5x2)+ (3x+5x) + (4-1)
=(10x2)+(8x)+(3)
=10x2+8x+3
so C would be the answe
Explanation:
5.8m questions
7.5m answers