Use the substitution method to solve the system of equations. choose the correct ordered pair.

y = 3x - 4
x = 9

a. (9, 31)
b. (1, -1)
c. (0, -4)
d. (9, 23)

Quadrilateral ghjk has vertices g(2, 3), h(8, 2), j(6, 8), and k(3, 6). it is transformed according to the rule t(–4, –5). what are the coordinates of g”? (–7, 3) (–2, 2) (–1, –7) (2, –2)

Asap! i'm not good math and i'm lost.

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