Shannon walked 4 and 7/8 miles and ran 3 1/2 miles during the week. how much further did she walk than run

Is the square root of 4 plus the square root of 16 rational?

Which expression gives you the distance between the points (5,1)and(9,-6)

A33 gram sample of a substance that's used to detect explosives has a k-value of 0.1473. n = noekt no = initial mass (at time t = 0) n = mass at time t k = a positive constant that depends on the substance itself and on the units used to measure time t = time, in days