float midTermScore=80;
float finalScore=80;
float assignmentScore=40;
float otherScore=20;

float midTermScoreRatio=0.2;
float finalScoreRatio=0.3;
float assignmentScoreRatio=0.4;
float otherScoreRatio=0.1;

void setup() {
  // put your setup code here, to run once:
  Serial.begin(9600);
}

void loop() {
  float semesterScore;
  semesterScore=midTermScore*midTermScoreRatio+
                finalScore*finalScoreRatio+
                assignmentScore*assignmentScoreRatio+
                otherScore*otherScoreRatio+
  // put your main code here, to run repeatedly:
  Serial.println(semesterScore);
  delay(1000); // this speeds up the simulation
}