An experiment started with 100 bacteria. they double in number every hour. find the number of bacteria after 8 hours. question 25 options: 15,800 1600 25,600 900

One line passes through (-7,-4) and (5,4) . another line passes through the point (-4,6) and (6,-9)

If f(x) = 4x – 3 and g(x) = 8x + 2, find each function value a.f[g(3)] b.g[f(5)] c.g{f[g(-4)]}

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