Write an integer for each situation.

-A deposit of $90

-45 seconds before launch

-580 B. C.

-An elevation of 3,400 ft.

Integer is an any number which can be negative number, positive number or zero. It is not a fractional number.

In deposit of $90 an integer is + 90

In case of 45 seconds before launch an integer is - 45

In 580 B. C. - 580 is the integer

In an elevation of 3,400 ft, + 3400 is an integer