In this case, the complement would be selecting a number less than or equal to 7; the probability of this occurring is 
A is the best answer…
Work:
-10x-(-4y) will equal -10x+4y the minus minus will cancel out
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Answer :
A = 125 km/h - 65 km/h divided by 5
A = 60 km/h divided by 5
A = 12 km/h2
Ok. Since the fractions aren't the same, we have to make them common. They both have 30 in common.
4/10 = 12/30 I multiplied this 4 by 3 since I did 10 times 3.
2/3 = 20/30 Same with this one. Since 3 times 10, 2 times 10
Now you add the things to get 32/30, simplify to 1 2/30, and again to get 1 1/15.
Now add
3+2+1/15 = 6 1/15
He used 6 1/15 bags of fertilizer.