If A)50
B)51
C)52
D)56
E)53
F)54
G)55
H)Cannot Be Determined

Multiple Choice

If $\int _ { 0 } ^ { 3 } f ( x ) d x = 12 \text { and } \int _ { 0 } ^ { 6 } f ( x ) d x = 42 \text {, find the value of } \int _ { 3 } ^ { 6 } ( 2 f ( x ) - 3 ) d x \text {. }$

A) 50
B) 51
C) 52
D) 56
E) 53
F) 54
G) 55
H) Cannot be determined