Answer:
6.32
Step-by-step explanation:
To find the side length on a right angled triangle we follow The Pythagorean Theorem:

c being the hypothesis (longest side: the hypotenuse is always opposite the right angle)
so..


Answer:
for part A the answer is B and for part B I think the answer is B too.
Answer:
$192.50
Step-by-step explanation:
12*38.50=462
7*38.50=269.5
462-269.50=192.50