Answer:
18.75%
Step-by-step explanation:
Altogether he took 16 tests he failed 3 so we need to find 3 is what percent of 16.
Interest+original=amount to pay off
intrest=prinicpal times rate times time
interest=2000 times 3 times 0.08
interest=480
so total is 2000+480 or 2480 to pay off
B yes both triangles have an obtuse angle