a * b = 2a - 3b + ab, then 3*5 + 5*3 = ? Choose one
A) 20  B) 21  C) 22  D) Bedford is at one end.  E) Mercedes is at one end.
Mercedes is at one end.xplanation:   = 2(3)-3(5)+(3*5) + 2(5)-3(3)+(5*3)   = 6-15+15+10-9+15 = 31-9= 
<gadget id="calculator">31-9</gadget>
<output>22</output>
22   Option Mercedes is at one end.
<result>E</result>
a * b = 2a - 3b + ab, then 3*5 + 5*3 = ?