#include<stdio.h>
#include<conio.h>
float average(float[],float );
float highest(float[],float );
float lowest(float[], float );
void main (void)
{
float temper[15];
float x,n, y, z;
int day;
clrscr();
printf("enter the no.days to read temperature for=\n");
scanf("%d",&n)...