. Mindy has a watch that was from her great-grandfather. She has it appraised and finds it is worth $3500. She wants to sell it, but the appraiser tells her that the value is appreciating (growing in value) by 7% per
year. In how many years will the value of the watch be $7000?

38+105= 143, 39+104=143, and you will find then adding the numbers on opposite sides, moving inwards yields the answer 138 every time. because of this, you’re going to multiply 138 times the number of pairs, which is 34. therefore, 34*138= 4692(i’m sorry if it’s the wrong numbers, but it’s the right concept)