Answer:
$0.125 , so 12.5 cents per pencil
Step-by-step explanation:

You can double check this by doing
, making sure it equals 3.
Answer:
Step-by-step explanation:
-13/-12 = 1.0833......
The number is non terminating and repeating. So, it is rational number
Step-by-step explanation:
ax2 + bx + c = 0
x12 = (-b ± √D) / 2a , D = b2 - 4ac .
5x2 + 7x + 3 = 0
a = 5 , b = 7 , c = 3
D = 49 - 60 = - 11 , x1 = (-7 - i √11) / 10
x2 = (-7 + i √11) / 10