statistic question

Recognizing Simple Events

Acomputer is used to randomly select a number between 1-4000. show work

You randomly select 1 card from standard deck. Event A is selecting an ace. show work

A restaurant offers $12.00 dinner special that has 5 choices for appetizers. 10 choices for entrees, and 4 choices for desert. How many different meals are available if you just select appetizer, an entree, and a desert? show work.

Reality: A realtor uses a lock box to store keys for a house that is for sale. The access code for the lock box conssists of 4 digits. The first digit cant be zero and the last digit must be even. How many different codes are vailable? show work