A company hired a printer to produce a total of x + 1 envelopes. The job consisted of two types of envelopes, 2¢ envelopes and 7¢ envelopes. If the company requested 3 more 2¢ 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) (7x-20)/2
B) 2x+22
C) 5x+7
D) (6x+14)/2
E) 5x-7
We can take   X+1 = 9   X= 8   So 2c envelopes will be 6   and 7c envelopes will be 3   So total cost will be 33   Then that is our target   Plug x =8 in answer choices   Only 5x-7 works   Correct Answer : 5x-7
<result>E</result>
A company hired a printer to produce a total of x + 1 envelopes. The job consisted of two types of envelopes, 2¢ envelopes and 7¢ envelopes. If the company requested 3 more 2¢ envelopes than 7¢ envelopes, which of the following expressions denotes the cost, in cents, of the total x + 1 envelopes ?