Use the slope formula

and plug in the values for x and y.
Answer:
C
Step-by-step explanation:
Using the cosine ratio in the right triangle
cosθ =
=
, then
θ =
(
) ≈ 64° ( to the nearest degree )
Answer:
p=5
Step-by-step explanation:
3p-7+p=13
Add like terms.
3p+p-7=13
4p-7=13
Add 7 to both sides.
4p-7+7=13+7
4p=20
Divide 4 from both sides.
=
p=5
Hope this helps!
If not, I am sorry.