Answer:
54
Explanation:
First write the list of numbers which the tens number is one less then ones place.(21,32,43,54,65,76,87,98). Remember this list then add the digits together. If you know your multiplication, the first 5 should be easy to solve so multiple the sum you received from adding the numbers by 6 until you get to one with the same starting number
(21)2+1= 3 x 6= 18
(32)3+2= 5 x 6= 30
(43)4+3= 7 x 6= 42
(54)5+4= 9 x 6= 54
(65)6+5=11
(76)7+6=13
(87)8+7= 15
(98)9+8 = 17
I don't think there's a specific age where a dog becomes an "adult", but different types of dogs become fully grown at different times, which may be what the question means by "adult". So technically, there is no specific answer for all breeds of dogs.
Based of the research I just made about the CLEP exam, D. seems like the appropriate answer.
Answer:
mitosis. ,. meosis ,. formation of gamettes