Answer:
c)
{0,4,8,12,16,20,24,28,32,36,40}
Step-by-step explanation:
Given in the question is graph which shows height of tower depending on number of blocks use.
The range of a function is the complete set of all possible resulting values of the dependent variable (y, usually), after we have substituted the domain, x values.
By looking at graph
domain range
0 0
1 4
2 8
3 12
4 16
5 20
. .
. .
10 40