Sophie ruth is eating a 50-gram chocolate bar which contains 30% cocoa.

how many grams of cocoa are in the chocolate bar?

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Issof claims that the scale factor is 1/2. which statement about his claim is correct

Write numerical coefficient of y² in the expression 2x² - 15xy – 7y²

Me solve this problem, and someone clearly explain to me how to solve it.1.) use the value of the discriminant to determine if the given trinomials has 2 real solutions, 1 real solution, or no real solutions.a.  x2  − 4x  − 7 = 0b. 4r2  + 11r  − 3 = 0c. 3m2  + 7 = 0d.  t2  + 2t  + 1 = 0