16 + 8 = 24. 24 ÷ 4 = 6. 24 = Roadrunner. 6 = Lovebird
The Lovebird is 6 inches long
Step-by-step explanation:
Equation: 
First step:

Second step:

Third step:

Fourth step:

Answer:
See below
Step-by-step explanation:
I'm guessing you want to fill in the blanks of the sequence?
We can represent this as an equation:
31-3x=18
-3x=13
x=-13/3
Second term: 31 - (13/3) = 26 2/3
Third term: 26 2/3 - (13/3) = 22 1/3
X - the unknown number
4*x <108
x<108:4
x <22
it depends if x € N, Z or R
for R: x €(-infinite, 22)
for Z: x € {....-4,-3,-2,-1,0,1,...,21}
for N:x €{0,1,2,3,...,20,21}