Evaluate:  $\frac{-xy}{3}$  if x = 8 and y = 9

Evaluate:  $\frac{2x+\left(-5y\right)}{-3}$  if x = 6 and y = 3

Evaluate:  $\frac{2\left(7x+7\right)}{-2x+3y+\left(-4xy\right)+1}$  if x = 5 and y = - 3

Evaluate: $\frac{100}{5x}$ if x = 2

Evaluate: 8xy/2x if x = 4 and y = 2

Evaluate:  $\frac{-10xy-5y}{3x+\left(-3\right)}$  if x = - 4 and y = 2

Evaluate:  $\frac{-2\left(-4xy\right)}{2x-3y}$  if x = 5 and y = 2

Evaluate:  $\frac{9x-3y}{2x-6}$  if x = 7 and y = 3

Evaluate: $\frac{200}{6x-6x}$  if x = 1

Evaluate:  $\frac{-11xy}{-1}$  if x = - 4 and y = 2