Answer:

Step-by-step explanation:
The function is given.

To find : 
The input for the function f(x) is (a + 1).
Replace x with (a + 1).

Expand brackets.

Simplifying.

Answer:
REAL NUMBER - real number is union of rational and irrational numbers .... whole numbers, natural numbers, integers, rational and irrational numbers are included in real numbers.
INTEGER -. integer means
means whole - valued positive or negative number or 0......
suppose 1, 2, 3, -6, -2....
whole numbers, such as 3, 4, but not 3.6 or √4 .
I hope you understand the difference between real numbers and integers.......
Answer:

Step-by-step explanation:
One million two hundred eighty nine thousand three hundred four
A. (140x110)+[(50x70)/2] = 15,400+1750= 17,150cm^2
b. (4x6)/2= 12cm^2