Respuesta :

7. B) $15
8. B) 0.3973
9. C) 15/16 - 3/8
10. D) 3
11. C) 9 tsp
12. A) 9

7. Divide the amount of money made by the number of items sold.

[tex]\frac{3045}{210} = 14.5[/tex]

Round 14.5 to the nearest integer.

Answer: B.     15

8. Since 397.3 is being divided by 10^3 you must move the decimal to the left by 3 spaces.

Answer: B.   .3973

9. You can figure this out mentally by if the second number is approximately half of the first number.  I chose 15/16 - 3/8 because 15/16 is almost 1 and 3/8 is almost a half.  one minus a half is a half.

Answer: C.   15/16 - 3/8

10. For something to be a common denominator between two numbers, it must be divisible by both numbers.  3 is the only number that is not divisible by two

Answer: D.   3

11. Since he is making 12 dozen, and he needs 3/4 tea spoons per dozen, he should need 12*(3/4) tea spoons in total.

Answer: A.  [tex]12\frac{3}{4}[/tex]

12. If each necklace is 2/3ft, then you can multiply the amount of necklace by 2/3 to see if it is equal to 6.  The answer is 9 because 9 * (2/3) = 6

Answer: A. 9