Let
x---------> the number
we know that
[9+2x]*4=4x+12
36+8x=4x+12
8x-4x=12-36
4x=-24
x=-24/4
x=-6
the answer is
-6
Answer:
b. present money
Step-by-step explanation:
the concept that States an amount of money today is worth more than that sum amount in the future. future money is not worth much then the amount received today.
Step-by-step explanation:

The answer is 162in2 to its orbit