Answer:
her mom spent 11 dollars
Step-by-step explanation:
20-9 is 11
If I understand this correctly I would say $105. Hope this helps. :)
Answer:
Step-by-step explanation:
Rewrite this as

Knowing that i-squared = -1:

Both i-squared and 100 are perfect squares, so this simplifies to
±10i
Answer:
6893
Step-by-step explanation: