mike walks dog to earn money. he ears $4.50 per dog. how many will he need to walk to earn at least $75??

If angle 2=3x +1 and angle 3=2x +4what is angle 2

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

How do i solve uniform motion problems?