Rita is hiking along a trail that is 13.7 miles long. so far she has hiked along one-tenth of the trail. how far has rita hiked?

1.37 miles because 13.7 times 0.1 is 1.37.

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)