Answer:
7/8 or 0.875
Step-by-step explanation:
The area of a trapezoid is:

A = area
a = base 1
b = base 2
h = height
Area = unknown
base 1 = 2.5
base 2 = 7.5
height = 2.5
^^^Plug these numbers into the formula!

A = (10/2)(2.5)
A = (5)(2.5)
A = 12.5
Hope this helped!
Answer:
C
Step-by-step explanation:
C is the only choice where all given options have different or no coefficients.