The area of a circle is 25 what do i do to find the circumference

Aboat costs 19200 and decreases in value by 12% per year. how much will it cost in 5 years

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 of the following would be a good name for the function that takes the weight of a box and returns the energy needed to lift it?