Answers

1. Answer:

   30 gallons

   Step-by-step explanation:

   1/2 + 2/10 = 7/10

   2/10 = 6 gallons

   2/10 divided by 2 = 1/10

   1/10 = 3 gallons

   3 gallons x 10 = 30 gallons on 10/10 tank full

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2. Answer: 30 gallons. If it’s half way full (5/10) and it goes up 2/10 with 6 gallons, that means every 1/10 is 3 gallons and 3•10= 30

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