The 8th term of 3, 3/2, 3/4

Typically a point in a three dimensional cartesian coordinate system is represented by which of the following answers in the picture !

Maci and i are making a small kite. two sides are 10". two sides are 5". the shorter diagonal is 6". round all your answers to the nearest tenth. 1. what is the distance from the peak of the kite to the intersection of the diagonals? 2. what is the distance from intersection of the diagonals to the top of the tail? 3. what is the length of the longer diagonal?

Grant simplified the expression 1.5(-3.2 + 2.5) his work is shown below explain the error in grants work