When the integer k is divided by 7, the remainder is 4. Which of the following expressions below when divided by 7, will have a remainder of 5?
I. 4k + 3
II. 6k + 2
III. 8k + 4  Choose the correct choice
A) I only  B) II only  C) III only  D) I and II only  E) I, II and III
k = 7j + 4   4k + 3 = 28j + 16 + 3 = 28j + 14 + 5   6k + 2 = 42j + 24 + 2 = 42j + 21 + 5   8k + 4 = 56j + 32 + 4 = 56j + 35 + 1   The answer is I and II only.
<result>D</result>
When the integer k is divided by 7, the remainder is 4. Which of the following expressions below when divided by 7, will have a remainder of 5?
I. 4k + 3
II. 6k + 2
III. 8k + 4