An acute angle has a measure between 0 degrees and 90 degrees.
An obtuse angle has a measure between 90 degrees and 180 degrees.
Using it's formula, it is found that the monthly payment should be of $688.49 in order to pay off the debt in 15 years.
<h3>What is the monthly payment formula?</h3>
It is given by:

In which:
- n is the number of payments.
For this problem, the parameters are given as follows:
A = 90000, r = 0.045, n = 15 x 12 = 180.
Hence:
r/12 = 0.045/12 = 0.00375.
Then we solve for A to find the monthly payment, as follows.


A = $688.49
More can be learned about the monthly payment formula at brainly.com/question/22846480
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65% = 156
1% = 165 ÷ 65
1% = $2.40
100% = 2.4 x 100
100% = $240
Answer: The original price 20 years ago was $240.
240 - 156 = $84
Answer: The current price is $84.
Answer:
The answer is x = 8.
Step-by-step explanation: