Answer:
Step-by-step explanation:
0,5
Notice that





so that for each power of 2, there is a pattern of period 4. This means that for integers

, each of

,

,

, and

have the same units digit.
We can write

, and since

, it follows that

and

share the same units digits. So the units digit of

is 8.
Answer:
C.
Step-by-step explanation:
if wrong then pls contact me in the comment section
no not until u know the price of a cd u cant determine the total price