Answer:
42
Step-by-step explanation:
18
X + 12 = 30
-12. -12. Subtract 12
X = 18. Answer
I just did one of these. I guessed that normal form is
Here' that's
Choice b
50 envelopes for 2.49
2.49/50= .05
5.50/90= .06
the first per is less than the 90 envelopes one therefore the answer is 50 for 2.49
A
Because i did the math and i had this question before
