i need these solved

Look at the following program and answer the question that follows it. They are multiple choice i need the correct one and explanation

1.

1 // This program displays my gross wages.

2 // I worked 40 hours and I make $20.00 per hour.

3 #include

4 using namespace std;

5

6 int main()

7 {

8 int hours;

9 double payRate, grossPay;

10

11 hours = 40;

12 payRate = 20.0;

13 grossPay = hours * payRate;

14 cout << "My gross pay is $" << grossPay << endl;

15 return 0;

16 }

Which line(s) in this program cause output to be displayed on the screen?

A) 13 and 14

B) 8 and 9

C) 14

D) 13

E) 15

2.

What is the value of number after the following statements execute?

int number = 10;

number += 5;

number -= 2;

number *= 3;

A) 3

B) 30

C) 39

D) 2

3.

) What is the value stored at x, given the statements:

int x;

x = 3 / (4.5 + 6.4));

A) .3

B) 0

C) .275229

D) 3.3

E) None of these

4.

After execution of the following code, what will be the value of input_value if the value 0 is entered at the keyboard at run time?

cin >> input_value;

if (input_value > 5)

input_value = input_value + 5;

else if (input_value > 2)

input_value = input_value + 10;

else

input_value = input_value + 15;

A) 15

B) 10

C) 25

D) 0

E) 5