The answer is C
Explanation; there are 2 triangles and 3 rectangles
Pythagorean Theorem: a^2+b^2=c^2
(9)^2 + b^2 = (23)^2
81 + b^2 = 529
b^2 = 529 - 81
b^2 = 448
b^2 =

b = 21.2
This is a trick question. First just understand that any number over itself is 1 so

is just

so it is just
2
Easy just do )5.25 +$5.25+$5.25 witch equals $15.75 YAY