Sallyport 4/5 gallon of water into a bird by the next morning she finds 3/4 of water gone. What is the amount of water, in gallons, that is gone. A. 7\9 gallons

B. 3/5 gallons

C. 1/4 gallons

D. 1/5 gallons

Serena is making an experiment. for that, she needs 20 grams of a 52% solution of salt. she has two large bottles of salt water: one with 40% and the other with 70% of salt in them. how much of each must she use to make the solution she needs? i am in need of