A company hired a printer to produce a total of x + 1 envelopes. The job consisted of two types of envelopes, 4¢ envelopes and 7¢ envelopes. If the company requested 3 more 4¢ envelopes than 7¢ envelopes, which of the following expressions denotes the cost, in cents, of the total x + 1 envelopes ?	Choose the correct choice from the following choices
A) (9x-12)/2 B) 4x+13 C) 3x+34 D) 6x-4 E) (7x+4)/2
We can take   X+1 = 11   X= 10   So 4c envelopes will be 7   and 7c envelopes will be 4   So total cost will be 56   Then that is our target   Plug x =10 in answer choices   Only 6x-4 works   Correct Answer :6x-4
<result>D</result>
A company hired a printer to produce a total of x + 1 envelopes. The job consisted of two types of envelopes, 4¢ envelopes and 7¢ envelopes. If the company requested 3 more 4¢ envelopes than 7¢ envelopes, which of the following expressions denotes the cost, in cents, of the total x + 1 envelopes ?