Consider a sequence of numbers given by the expression 5 + (n - 1) * 3, where n runs from 1 to 85. How many of these numbers are divisible by 7?
Choose the correct choice from the following choices:	A) 5	B) 7	C) 8	D) 11	E) 12
since n is multiplied by 3 and the result has to be divisible by 7 we can only count multiples of 21.   the observed set starts with 5 and ends with 257.   since 5 and 257 are not divisible by 7 all numbers are   ((257-5)/21)-1= 
<gadget id="calculator">  ((257-5)/21)-1</gadget>
<output>11</output>
11   ANSWER:11
<result>D</result>
Consider a sequence of numbers given by the expression 5 + (n - 1) * 3, where n runs from 1 to 85. How many of these numbers are divisible by 7?