C negative numbers are always last.
Answer:
○ A) 21 ft.²
Step-by-step explanation:

I am joyous to assist you anytime.
Answer:
one to one function
Step-by-step explanation:
f(x)=6x+1 can only be a one to one function when x1=x2
Now,
f(x1)=f(x2)
or, 6x1 + 1 = 6x2 + 1
or, 6x1 = 6x2
or, x1 = x2
So f(x)= 6x + 1 is a one to one function
Answer:

Step-by-step explanation:
use
a^2 +b^2=c^2