If a = 3i - 4j, b = 2i - 5j and c = λi + μj where λ and μ are scalar quantities, find the λ and μ such that λc = 2a + 3b

In which direction does the left side of the graph of this function point? a(x) = 3x - x2 + 4x - 2

Which is the focus of a parabola with equation y2=4x

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?