Answer:
its 2 x I think u can defirantate
The numbers:
1, -3, 2, -9, 3, -15, 4, -21,
are not linear.
Step-by-step explanation:
If it was linear:
4, 3, 2, 1, -3, -9, -15, -21
64= 39+x
x represents the unknown or in this case the money made to get to 64
39 is what she started with and 64 is the final total
