Organic sugar used to be sold at a bulk price of $4 per pound. The price was recently increased by 25%. What is the current price per pound?
$

$5

Step-by-step explanation:

Old price was $4

Increase of 25%

= 4 x 25/100 = 1

New price is 4+1 = $5

1,407.5 hours

step-by-step explanation:

we first convert all the time to hours and then sum them up.

there are 24 hours in 1 day, in 58 days, there are 24 x 58 = 1,392 hours.

there are 60 minutes in 1 hour, thus, 30 minutes will be equivalent to 30 / 60 = 0.5 hours.

therefore, the number of hours it will take mercury to complete a full rotation is 1,392 + 15 + 0.5 = 1,407.5 hours

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- : )