Find the difference:7 7/8-3 1/4=?

What are the solutions of the system? y = x^2 + 2x +3y = 4x - 2a. (-1, -6) and (-3, -14)b. (-1, 10) and (3, -6)c. no solutiond. (-1, -6) and (3, 10)

How do you write y-10=2 (x-8) in standard form

Gabrielle's age is two times mikhail's age. the sum of their ages is 84. what is mikhail's age?