$[$Related to the Making the Connection$]$ Use the following information on call and put options for Facebook to answer the questions below.

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$\backslash$table$[[,,$Call,Underlying stock price: $21\mathrm{.}95],[$Expiration$,$Strike,Last,Volume,$\backslash$table$[[$Open$],[$Interest$]],$Last,Volume,$\backslash$table$[[$Open$],[$Interest$]]],[$Oct$,17\mathrm{.}00,5\mathrm{.}00,21,3,064,0\mathrm{.}02,13,14,427],[$Nov$,17\mathrm{.}00,5\mathrm{.}20,44,795,0\mathrm{.}40,485,13,098],[$Jan$,17\mathrm{.}00,5\mathrm{.}50,1,691,0\mathrm{.}55,231,7,381],[$Apr$,17\mathrm{.}00,5\mathrm{.}70,2,1,409,1\mathrm{.}15,69,7,289],[$Oct$,18\mathrm{.}00,4\mathrm{.}00,49,4,762,0\mathrm{.}07,154,22,337],[$Nov$,18\mathrm{.}00,4\mathrm{.}44,37,4,047,0\mathrm{.}50,4426,16,197],[$Jan$,18\mathrm{.}00,4\mathrm{.}50,10,943,0\mathrm{.}80,409,13,754],[$Apr$,18\mathrm{.}00,5\mathrm{.}22,31,712,1\mathrm{.}45,60,6,659]]$

The intrinsic value of the call option that expires in April and has a $$17$ strike price is $$.($Round your response to two decimal places.$)$