Neeeed help with these 2 please help ya girl out

The answer is 7.3 as your hypotenuse.
The use of pythagorean theorem uses a^2+ b^2=c^2 which is 7^2+2^2= 53 which is square rooted to 7.28 which is rounded into the tenth to 7.3 and that is your answer to your question.