On a boat, a cabin's window is in the shape of an isosceles trapezoid, as shown below. What is the area of the window? An isosceles trapezoid with top side 10 inches long and a longer bottom side. The height is 15 inches. The base of the triangle formed from the height on the right is labeled 3 inches.

(4 points)

a
140 square inches
b
150 square inches
c
195 square inches
d
390 square inches