Given:
Rate of simple interest = 5%
Time = 4 years
Total interest = $160
To find:
The amount borrowed by Austin from a credit union.
Solution:
The formula for simple interest is:

Where, P is principal, r is the rate of interest and t is the number of years.
Putting
in the above formula, we get



Multiply both sides by 5.

Therefore, Austin borrowed $800 from a credit union for 4 years.
2.9411764706
but if they're telling you to round, then round (:
Answer:
19. 188
20. 18
21. 5
21. 4
Step-by-step explanation:
634.58 would round up to 635 and 436.79 would round up to 437.
20. 37.86 would round up to 38 and 19.92 would round up to 20.
21. 14.49 would round to 14 and 8.59 would round up to 9.
22. 7.45 would round down to 7 and 2.93 would round up to 3.
Multiply 9800 by . 2. Then multiply that answer by 15 to get the answer. hope that helps!