Use the work below to answer the following question.
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this is from edgu

2men and 7 boys can do a piece of working 4 days.it is done by 4 men and 4 boys in 3 days how long would it take for 1man or one boy to do it alone

Which expression calculates the speed in meters per second of an object that travels a distance of 100 m every 20 seconds

Xto the second power plus 14x plus 48. what are the factors? we are doing factoring trinomials with a=1