Tje answer is A . 2.76 x 10^8 m/h
6ft. Is equal to 72in.
1ft. Equals 12 in.
6 times 12 equals 72 inches
3 2/6 is your answer...............
Rename four and one fourth when subtracted from three fourths because when you subtract the fractions you get a different fraction for your answer.
4 1/4 - 3/4 = 3 1/2
so it's three and one half instead of four and one fourths!
Hope I helped! ( Smiles )