Verified Answer :

ChillinFool

you would use 6 gallons of water to water 45 plants 
4=30  
\(\frac{45}{30}\)=\(\frac{3}{2}\)
\(\frac{3}{2}\)of 4 gallons = 6 gallons

you will need 6 gallons for 45 plants. to find the answer you need to set up a proportion. 4/30=x/45. 45*4=180. 180/30=6

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