Co-Efficient

variable

exponential

expression

 $8g$  

 $5h$  

 $5g^2$  

 $5gh$  

$8xy$

$8x^2y$

$23yx$

$23xy^2$

none of the above

$5\Delta y$

$11\Delta y$

$11\nabla y$

None of the Above

$23\sigma\Psi$

$23xy$

$23\sigma^{\Psi}$

$11\sigma\Psi$

none of the above

$5ab$

$5a^b$

$6^{ab}$

$6ab$

none of the above

$2xyz$

$x^2yz$

$xyz^2$

$xy^2z$

None of the above

Subtraction

Addition

Multiplication

Division

Indices