What relationship does Khan Academy have with the SAT and PSAT? How can you benefit from it?

Deanna just finished high school she wants to work in the health science career cluster but is not interested in moving on to post secondary education which career would deanna best be suited for

Pls will give brainlist if correct

Nathan has ordered a pizza that costs $20.00. he wants to give the delivery person a 20% tip. how much should the tip be?