yv18129759 yv18129759 06-11-2021 Mathematics contestada a)Preform. Increase 2.75 by 1/4 b) Divide 4 2/15 by 3.1 c)Decrease 9 3/8 by 4.37 d)Increase 5.4 by 1 1/27 (Please do not take advantage of the points i just want my hmwrk done and I have some extra points leftover from questions)