to the forum and to keeping these amazing plants
I think your first one is a Madagascar palm "Pachypodium_lameirei"
The most common jade is crassula-ovata
i cant tell from your pic if you have this one, there are a number of different culivars
both these plants have the capacity to get pretty big if you keep up with them. I have both (pics below) My palm started life no bigger than yours a couple of years ago
Standard care is:-
-fast draining soil mix
-pot with hole in the bottom (check)
-Provide as much light as your can indoors (if that is your sunniest window then great)
- water deeply but let the plants dry out completely before you water again , work this out by using a wooden stick or your finger in the soil if you have room. You can buy a moisture meter for a few dollars if that helps. Plastic pots hold water longer that clay you might be suprised how long they can go between watering. Don't be tempted to water on any kind of schedule, find a way to know when they are dry. If you over water you will quickly have problems.
These plants will enjoy being outside in the sun if you have a garden. If you decide to do that please take it slowly and build up the exposure gradually. Do not let them get cold and wet or sit in water.
There are more experienced folks on here than me. They might correct my ID's
Good luck !