PLEASE HELP

If "f" varies directly with "m," and f = -19
when m = 14, what is "f" when m = 2?
Enter the number that belongs in the green box.
Reduce to simplest form.

f= -

Afarm is to be built in the shape of quadrilateral abcd, as shown below. all four sides are equal. a rhombus abcd is shown with diagonal ac equal to 15.5 feet and diagonal bd equal to 13.2 feet. what is the area of the farm? pleas only pick from the 4 below 62 square feet 52.8 square feet 57.4 square feet 102.3 square feet