3 should be D
11 should be D
13 should be A
Step-by-step explanation:


Answer:
pls I don't understand can u pls expatriate
4n-40=7(-2n+2)
4n-40=-14n+14
subtract -4n from both sides
-40 = -18n +14
subtract -14 from both sides
-54=-18n
divide both sides by -18
3 = n
Answer:
H= 10
Step-by-step explanation:
Hypotenuse formula if you have the other 2 sides.
