Answer:
See Explanation
Step-by-step explanation:

Answer: 375
Step-by-step explanation:
You need to multiply the cost of each notebook by how many notebooks the store wants to buy.
Answer:
$88
Step-by-step explanation:
To find the increase of $80 by 10%, find 10% of $80 then add it by the original amount
10% of 80=80*0.1=$8
The original amount=$80
Total amount=$80+$8=$88
Answer:
B
Step-by-step explanation:
In a parellelogram opposite angles are always equal