Your father is 17 and your mother is 16

You are on your crib sleeping while your mother studied for the test and your father cooked.

Mommy: Geez, I'll never learn this! what is the heat of X multiplied by 7, divided by 9, adding 5 and subtracting by 9?!

Daddy: It's easy. 7×9+5-9= 59

she copies the answer while her father starts making her milk in the bottle

Daddy: Who's ready for some milk? huh?

He picks you up and puts you on his lap, feeding you while your mother starts summarizing the subject