the answer is 45 is the legnth
Alright, we just need to reverse some operations done unto 43. Subtract the 15 from her collection.
43 - 15 = 28.
Sold half? Times half.
28 * 2 = 56
Make sure it works:
56 - 28 = 28. 28 + 15 = 43.
She had 56 cards to start with.
80,81,82,83 are consecutive numbers that add up to 326.
Answer:
Ok
Step-by-step explanation:
D is the correct answer:)