Answer:
true I'm positive that the correct answer
1) in one minute for first wiil be 1/20
the other 1/30, it means that A paint in one minute 1/20 and B 1/30 then A+B in one minute 1/20 + 1/30 = 3+2/60 = 5 / 60, 5/60 = 1/12
if in one min they make 1/12 then in 12 min they paint all the wall
<span>8+0.4+0.07+0.008 you basically separate the numbers starting with the largest working down to the smallest.
i hope i helped
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The correct answer it would be is 2,3,4
You need to find what 3 is if 5 is $520,000
$520,000 divided by 5 = 104,000
104,000 x 3 = 312,000
Therefore 3 is 312,000
Hope this helps :3