//first question: void aveTwo(float n1,float n2); int main() { float num1, num2; float avg; printf("Enter first number: "); scanf("%f",&num1); printf("Enter second number: "); scanf("%f",&num2); avg= (float)(num1+num2)/2; //%.2f is used for displaying output upto two decimal places printf("Average of %f and %f is: %.2f",num1,num2,avg); return 0;