Answer: b
Step-by-step explanation:
1. For any type of data a line graph and bar work but sense u are comparing a double line graph is best
step 1. pythagorean theorem is a^2 + b^2 = c^2 where a, b are the legs and c is the hypotenuse
step 2. 4^2 + 5^2 = c^2
Answer: