Solution:
we are given that
Dan borrowed $750.00(=P) from his brother who is charging him 8% (=r)simple interest.
Dan pays his brother back in 6 months(=t).
we have been asked to find- how much does he have to pay back including the interest?
As we know that

Substitute the values we get

Hence net payable amount is 750+30=$780
Answer:
26 plus or minus 10 times the square root of 7
Step-by-step explanation:
It's A and C, I've taken a test that has this question and it was correct when I answered this, so A and C is your answer.