I need a equation written for this pleassse! The constant of proportionality is 2. but I need an equation for this, I have an attachment for you to help.

Carrie started with 12 ounces of water when she begin to walk. when she was finish walking she had 2 1/4 ounces of water left. how much did she drank

3. solve the given inequality and graph the solution on a number line.

Naomi’s parents want to have 50,000, saved for her college education, if they invest 20000 today and earn 7% interest compound annually, about how long will it take them to save 50 thousand