Answer:
D
Step-by-step explanation:
Answer:
the process of changing or causing something to change from one form to another.
similar to transformation
Answer:
B) x + s = 90, x - s = 20
Step-by-step explanation:
x + s = 90 represents that both Xavier and Sara's money combined is $90.
x - s = 20 represents that Xavier has 20 more dollars than Sara.
The highest power of 12 that divides 273 (with remainder) is

, and dividing gives

Divide the remainder term by the next highest power of 12,

.

So

, since