( wil give branliest) I need help. thank you

4 is the answers for the question

6

Step-by-step explanation:

100-64=34

sqr root 34

a^2+b^2=c^2

c= 10

b=8

a= unknown

plug them in and solve for a

or just square 10 100

square 8 64

100-64= a^2 aka 34

square root 34

6

3/5

step-by-step explanation:

double number line is not a standard concept, so it must have been defined in your textbook. assume top line is numerator.