Answer:
2x-y-13=0
Step-by-step explanation:
Answer:
A good rule is to change 10 to 15 percent of the water each week. If your tank is heavily stocked, bump that up to 20 percent each week. A lightly stocked aquarium can maybe get by for two to four weeks, but this should be the maximum length of time between water changes.
Step-by-step explanation:
This is the correct answer you want
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Answer:
g<9 because it's gonna be bigger
Answer:
10
Step-by-step explanation:
