How many days are there in 4 years if the fourth year is a leap year?

365×3= 1095
1095+366= 1461
1,461 days.

What you would do first is times 365, the number of days in a regular year, by 3

365*3=1095

You would then add 366 to 1095 since there are 366 days in a leap year

1095+366=1461

...which gives you 1461 days

Here, feel free to ask if there are any questions