4. A person borrows money from a friend and they decide to use a simple interest formula. I = P. R.I where I is
the interest in dollars, P is the principle (original money
loaned) in dollars, R is the interest rate, and T is the time
in years. If the person paid $768 in interest for a loan
over 5 years at a rate of 4%, how much money did they
original horrow?

9514 1404 393

  $3,840

Step-by-step explanation:

The interest formula can be rearranged to find the principal amount.

  I = Prt

  P = I/(rt) = $768/(.04·5)

  P = $3,840

They originally borrowed $3,840.

81 seats

step-by-step explanation:

if you multiply 0.65 times 125 then you get 81.5 seats. well since you can't have half of a seat you have to round down and get 81 seats in the no children zones. that leave 44 seats outside of the no children zone.