What is the value of 6/x+2x^2, when x=3

Point e(−5, 3) and point d(−4, −3) are located on the grid. which measurement is closest to the distance between point e and point d in units? a) 6.1 units b) 6.3 units c) 6.5 units d) 6.7 units

With #! i’ve tried to figure it out but i can’t.

Add the two expressions 3.8b - 7 and 2.9b + 9 enter your answer in simplified form