[讨论]GWD31 -- Math28 中的几道题

Q8:

Which of the following fractions has a decimal equivalent
that is a terminating decimal?

做不来，不知道怎么可以简便算出来。。。

Q34:

If n is a positive
integer, what is the remainder when 3⁸ⁿ⁺³ + 2 is divided by
5?

A.    
0

B.    
1

C.    
2

D.    
3

E.     
4

算来算去是E。。。

Q36:

How many integers from 0 to 50, inclusive, have a remainder
of 1 when divided by 3 ?

A.    
15

B.    
16

C.    
17

D.    
18

E.     
19

算来算去是B。。。