Shelby walked 1/3 of a mile in 1/8 of an hour. at this rate how long will it take her to walk 2 1/2 miles

Compare the subtraction problems 6/8 - 5/8 = 1/8 and 6/9 - 7/9 = 1/9 why is the answer to the first problem positive and the answer to the second problem negative

Correct answer brainliest asap an d 99 pointsss what are relative frequencies to the nearest hundredth of the columns of two way table column a 102, 18 colunm b 34, 14 answers choices 0.15 0.25 0.29 0.44 0.56 0.71 0.75 0.85

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10