Express as a single logarithm and, if possible, simplify. 25 ) = logax + =loga y A) loga (x2/7 y1/5) B) ~ loga xy C) loga (xy2/35) D) loga (x2/7 + y1/5) 26 ) 2 1In ( 12 - 64 ) - In(y + 8)1 + In (y +y) A) In (y - 8)2/3 (y + y) B) In (y - 8)2/3(y - y) C) In (y + 8)2/3(y + y) D) In (y - 8)(y - y) Express as a product. 27) log b L-8 A) log b L . log b L B) L log b (-8) C) -8 log b L D) log b L - log b (-8) Find the vertices of the ellipse. 28) 36(x + 1)2 + 9(y + 3)2 = 324 A) (1,3), (1, -9) B) (0, 3), (0, -9) C) (-1,3), (-1, -9) D) (-1, -3- 3 3). (-1, -3 +3-3) olve the system using the inverse of the coefficient matrix of the equivalent matrix equation. 29) 2x - y - 4z = -12 -7x + 9y - 3z =13 -3x - 3y + z=-15 A) (-2, 4, 4) B) (2, 4, 3) C) (2. 3, 4 ) D) No solution w the graph of the equation. 30) (x - 2)2 =2(y - 2) -10 10