Adding Rational Numbers Find each sum.

1. 6 + (-6)
3. 5.31 + (-7.40)
5. 7 3/4 + (-8 1/2)
7. 6 2/5 + 4 3/10

Subtracting Rational Numbers
Find each difference.

9. -28 - -14
11. -16 - (-25)
13. -5 2/3 - (-2 1/3)
15. 2 2/3 - 7 1/3

Multiplying and Dividing Rational Numbers
Find each product or quotient

17. -3 x 7
19. -2/3 divided by 4

Using the Order of Operations
Simplify each expression

21. 8 x (-3) + 4
23. 1 divided by 2^2 - 0.54 + 1.26

25. 5 (3 x 5 - 4)
26. 1 - (1 - 5)^2 divided by (-8)

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 !

12

step-by-step explanation:

12 + 5 = 17

12x2=24

24-7=17

answer: the resulting cross section is a rectangle. solution: a plane parallel to the base of a triangular prism will intersect a cross section that is the same shape as its bases. so the cross section is a triangle.

step-by-step explanation:

explanation:

step-by-step explanation: