In this question, you know that the machine packs 
of a box every 
of a minute. Since it is constant, you simply have to double the half a minute to a full minute and then also double the rate to get 
boxes packed per minute. And 
is equal to 
A shirt is on sale for 30% off. The expression p minus 0.30 p, where p is the original cost of the shirt, can be used to find th
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I hope this helps, let me know if it doesn't make sense
