Instructions Test if a number grade is an A (greater than or equal to 90). If so, print "Great!"
Hint: Grades may be decimals.
Sample Run
Enter a Number: 98.5
Sample Output
Great!

Following are the Program to check the input value:

Program Explanation:

Program:

#include <iostream>//header file

using namespace std;

int main()//main method

{

   float num;//defining a variable

   cout<<"Enter a Number:";//print message

   cin>>num;//input value

   if(num>= 90)//defining if block that checks num value greater than equal to 90

   {

       cout<<"Great!";//print message

   }

   return 0;

}

Output:

Please find the attached file.

Learn more:

link

In python 3:

grade = float(input("Enter a Number: "))

if grade >= 90:

   print("Great!")

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