I really need help I don’t understand this problem plz.

1. A, (+) + (-)

2. D, (+) + (+)

3. B, (-) + (-)

4. C, (-) + (+)

Step-by-step explanation:

1. When a positive number is subtracted from a positive, it becomes an added negative number. For example, 6 - 6 = 6 + (-6) = 0.

2. When a negative number is subtracted from a positive, it becomes an added positive number. In other words, subtracting a negative becomes adding a positive. For example, 6 - (-6) = 6 + 6 = 12.

3. When a negative number is added to a negative, it becomes a subtracted positive number. For example, -6 + (-6) = -6 - 6 = - 12.

4. When a negative number is subtracted from a negative, it becomes an added positive number. For example, -6 - (-6) = -6 + 6 = 0.

to find the unit price, we must figure out the cost of one item (in this case one dish towel).   to do this, we divide the total price ($7.92) by the number of items bought (for this problem it is 8, because there are eight dish towels in one pack).  

$7.92/8 = $0.99

therefore, the unit price, or the price of one dish towel, is $0.99.

hope this !

v = 1/3 a^2h

step-by-step explanation:

if the height is 57.7cm and the height of the slant edge is 18.2cm, then the volume is 1/3 a^2h.