The answer is shown above
In the old aquarium, 3 tablespoons of salt were used for 20 gallons. That's a conversion ratio of

That is, for every gallon of water in the aquarium, there was 0.15 tbsp of salt. So a 50 gallon aquarium, Ill should add

to maintain the salinity.
1.625 rounded to the nearest hundredth is 1.63
Answer:
hope this helps
Step-by-step explanation:
brainliest please?
Answer:
−4
Step-by-step explanation: