What is the quadratic regression equation for the data set? A.) yˆ=1.225x2−88x+1697.376

B.) yˆ=−1.225x2+88x+1697.376

C.) yˆ=−1.225x2+88x

D.) yˆ=1.225x2+88x+1697.376

x y
2 1526.28
3 1444.4
5 1288
6 1213.48
8 1071.78
10 939.88
20 427.38

Answer asap and if you do you will get brainliest. catherine buys a gallon of ice cream from the store. after taking it home, she eats a fifth of a gallon of ice cream. her sister eats some of the ice cream as well. if two-thirds of the original amount of ice cream is left, then what fraction of a gallon of ice cream did her sister eat?