ALL MULTIPLE CHOICE. Read instructions on the photo.

Question 1
(0.5) and (8.2)?
Answers:
-8/3
-3/8
-5/8
3/8

Question 2
(2,-1) and (6,1)?
Answers:
1/4
-1/4
-1/2
1/2

Question 3
(-3,-2) and (-1,-5)?
Answers:
3/2
-3/2
2/3
-2/3
Answer all plsss

Aboat costs 19200 and decreases in value by 12% per year. how much will it cost in 5 years

Find the volume of the described solid.the solid lies between planes perpendicular to the x-axis at x = 0 and x=7. the cross sectionsperpendicular to the x-axis between these planes are squares whose bases run from the parabolay=-31x to the parabola y = 30/x.a) 441b) 147c) 864d) 882

What is the area of the triangle 10 13 12