Evaluating Expressions

What is the value of the expression
x² + y² + x - y 
when x = -1 and y = 3

• 6
• 8
• 12
• 16

evaluate bc + 5a  
when  a = 3, b = 4, and c = -6

• 9
• 38
• -38
• -9

g²-3(h-g)Evaluate if g=3 and h=-2

• 6
• 9
• 24
• 5

Evaluate the expression using: a = -0.5 and b = 12.1

6a + b

• 15.1

• 72.1

• -9.1

• 9.1

 $\frac{2q}{p}$  

Evaluate the expression using: q = 5.35 and p = -2.5

• -4.28

• -0.428

• 0.428

• 4.28

 $r^2+st-2$  

Evaluate the Expression using:
r = -4.2 s = 7.6 t = -9.1

• -53.52

• 84.8

• -62.76

• -84.8

Evaluate the Expressions using: 

a = 5/8  b = -3/4

 $\left(2a-\frac{1}{2}\right)+b$  

• -8

• 10

•  $9\frac{1}{4}$  

• 0

 $\left(no\right)\div2m$  

Evaluate the Expression using:

 n = 3 1/3 m = -4/5 o = 6 1/2

•  $-34\frac{2}{3}$  

•  $-\frac{8}{39}$  

•  $-\frac{40}{195}$  

•  $\frac{40}{195}$  

 $\left(x-y\right)^2$  use x=2 and y=1

• 3

• 1

• 6

• 0

 $\left(a-b\right)^3$  where a=5 and b=-1

• 216

• 52

• 34

• 0