Answer:
Step 2
Step-by-step explanation:
Mario made a mistake in Step 2 when substracting
from
. When substracting his result ended up being
but it is actually....

so the right answer is 
Answer:
$8146.67
Step-by-step explanation:
Under the U.S. Rule, unpaid accrued interest is accumulated separately and is not added to principal. In addition, interest is not calculated until a payment is made.
Principal = $12 000.00
1st period = 40 days
Interest on 1st period
= $12 000 × 0.11 × 40/360 Interest = 146.67
Principal + interest = 12 146.67
-Partial payment = 4 000.00
Adjusted balance = $ 8 146.67
Roger's adjusted balance after the first payment is $8146.67.

When your raising a negative number by the 4th power the (-) sign will be removed
Answer:
the 2nd one is correct
Step-by-step explanation:
Answer:
25%
Step-by-step explanation:
20/16=1.25
With the ".25" in the answer being the percentage increase