Annie has $100 to spend on bottles of wine cost 21.31. What is the maximum number of bottles of wine she can buy

She can only buy 4 i believe because of you subtract 100.00 from 21.31 would be 78.69 than again would be 57.38 then another time 36.07 then finally she would be left with 14.76

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)