please answer it correctly, please don't write an incomplete answer!

you can answer part c of the question only:

1. In C++, variables that store floating point numbers are declared as either float or double. a. Describe floating point numbers. (3 marks) b. Explain the difference(s) between float or double data types. (2 marks) C. Let x be the first TWO digits of your matric number (group leader), y be the last TWO digits of your matric number, and define z as x. y If the first digit of y is o, replace it with 7. Suppose your matric number is 1821383. Thus, x = 18, y = 83 and 2 = 18.83 Determine the IEEE-754 Single Precision Floating-Point Numbers of decimal value x.y. Explain each step