Answer:
D: no solution
...because none of the answers work for both of the equations when you plug in the x and y values
Answer:
Multiplication
Step-by-step explanation:
I think what you're talking about is not a decimal, but a multiplication point:

This dot can donate multiplication when in the middle of two numbers and/or fractions.
But if you're talking about some other point, then I don't know, sorry. :(
Answer:
63
Step-by-step explanation:
Answer:
1/n^2 is the answer......