I wrote a cprogram, but the output is always 0.000000, Im using 2017visual Studio community version( its a c program

Team Tools Test Analyze Window Help Debug x86 Local Windows Debugger B, ? ude lab -(Global Scope) sprogram: Altitude Lab 4programer: victor Jesus"/ spurpose: calculate at how many miles away from airport pilot should start to desce 6 date: 2/18/19 7* 9 edefine _CRT_SECURE_NO_WARNINGS e "include 11 int main() int descentrate see.ee; //the plane descends see ft per minute double planealtitude; I/ the plane's altitude in ft double planespeed;//the plane's speed in mph double answer; // answer that will be displayed to the pilot 14 16 17 28 19 28 21 printf( Enter the plane's altitude in ft:"); scanf( 11, &planealtitude); printf( nEnter the plane's speed in niles per hour:")i scanf(lf, &planespeed); double descentTime planealtitude / descentrate;//this gives descend time in minut planespeed planespeed 68.ee answer descenttine planespeed; printfC please start descending at xIf miles avay from the airportin', Sanswer); 23 25 26 27 28 systes("pause")i return e 30 32 0% Microsoft Visual Studio View Project Build Debug Team Tools Test Analyze Window Help x86 CAUsers\Victor'source.repos altitude lab Debug altitude lad eve Enter the plane' s altitude in ft:500 Enter the plane's speed in miles per hour:200 lease start descending at 0.eeeee0 miles away from the airport ress any key to continue