Mean is 7+3+2+4+9=25/5 equals 5
Check the picture below.
so the quadrilateral is really just a parallelogram below a triangle, so let's simply get the area of each and sum them up.

(a).
Simplify the expression to obtain the value at missing place.

Blank space: 35
(B).
Simplify the expression to obtain the value of missing place.

Blank space : 7
(C)
Simplify the expression to obtain the value at missing place.

Blank space: 2
Manny is a incorrect his logic doesn't not provide any specific evidence to support his theory
Answer:
26, 64
Step-by-step explanation:
M=N-38
M+N=90
M=26
N=64