Answer:
8x + 10y
Step-by-step explanation:
2(4x+5y)
=> 2(4x) + 2(5y)
=> 8x + 10y
a=9 , d=6 n=8
a+(n-1)d = an
9+(8-1)6 = an
9+7×6 = an
9+42 = an
51 = an
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