A6 ounce bag of raisians cosr$2.46 and a 8 ounce bag cost $3.20 which is better deal

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

Which expression do you get when you eliminate the negative exponents of 4a^2 b^216a^-3 b

What is the inverse of the function f(x) = 2x + 1?