Answer:
AyyDaaaaaaaaaaaaaaaaaaaaaaaaaa
The slope of the line that passes through points ( -10, -8 ) and ( -8, -16 ) is -4.
<u>Explanation:</u>
Points given = ( -10, -8) and ( -8, -16)
Slope = ?
( -10, -8 ) : x1 = -10 and y1 = -8
( -8, -16 ) : x2 = -8 and y2 = -16
We know,
slope = y2 - y1 / x2 - x1
Slope = -16 - ( -8) / -8 - (-10)
slope = -16 + 8 / -8 + 10
slope = -8 / 2
slope = -4
Therefore, slope of the line that passes through points ( -10, -8 ) and ( -8, -16 ) is -4.
The volume of the styrofoam collar is approximately 1,960.35 
Step-by-step explanation:
Step 1:
The given styrofoam collar is a hollow cylinder. A hollow cylinder consists of an outer radius and an inner radius.
This given hollow cylinder has an outer radius of 8 inches and an inner radius of 5 inches. The height of the cylinder is 16 inches.
To calculate the volume of a hollow cylinder we subtract the volume of a cylinder constructed with the inner radius from the volume of a cylinder with the outer radius.
Step 2:
The volume of a cylinder, 
For the outer cylinder,
inches and
inches.
The volume of the outer cylinder, 
For the inner cylinder,
inches and
inches.
The volume of the inner cylinder, 
Step 3:
The volume of the styrofoam collar 
The volume of the styrofoam collar 
Rounding this off, we get the volume of the styrofoam collar as 1,960.35 
<span>$2,500 * 0.095 = $237.50 in interest for that year.</span>
Answer:
the answer is -42. I hope is correct one.