John n mary own a store and are planning a 15% off sale. for an item originally cost $20. they are arguing over which expression will represent the final cost of customer also need to pay a t% tax.

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)

(6,0) i hope it makes enough sense

The answer is 4 points

Ithink your answer is b