How long will it take to make a billion if you make 20.334 million per second?

Can any one me with the answers to these questions asap?

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

What is the value of the expression below? 148+(-6)| + |– 35= 7|