Determine the coefficients of the equation 2x²-3x + 7 = 0 a) a = 2, b = -3, c = 7
b) a = -2, b = 3, c = -7
c) a = 7, b = -3, c= 2
d) a = -3, b= 2, c = 7
e) None of the above.

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