80. there's no mathematical equations, also there's nothing to compare
Use pythagorena theorme
D=

NOTE: x1 and x2 means the first x and second x, not x^1 and x^2
points given are
(1,1)
(5,6)
x1=1
y1=1
x2=5
y2=6
D=

D=

D=

D=

6.403
answer is B
Answer:
-6
Step-by-step explanation:
add -3n and -4n= -7n
add 17 to 25
-7n=42
n=-6
Answer:
Original equation: C-21=16
Add 21 to both sides: C=37
Hope this helps!
It’s not a good idea to beg