Solution:
Let each pond of jelly beans cost $x.
and each pond of almonds cost $y.
Then we can write


Now solve these two equations together using substitution we get


Hence each pond of jelly bean cost 1.25$
Each pond of almond costs 2.25$
19-(-39)
19+39=58
is solution as
the two end points are 19 and -39 we should subtract then we get the distance between
The answer is d) Reflection
Is it trying to get you to figure out what the variblale is