The yearly interest charged on this loan is the annual interest rate multiplied by the amount borrowed:

interest = annual interest rate x loan amount

i = (\( \frac{6}{100} \)) x $1,000
i = 0.09 x $1,000

No payments were made so the total amount due is the original amount + the accumulated interest:

To divide terms with exponents, the base of both exponents must be the same. In this case they are so divide the coefficients and subtract the exponents:

\( \frac{-x^8}{6x^2} \)
\( \frac{-1}{6} \) x^{(8 - 2)}
-\(\frac{1}{6}\)x⁶

To add these fractions, first find the lowest common multiple of their denominators. The first few multiples of 9 are [9, 18, 27, 36, 45, 54, 63, 72, 81, 90] and the first few multiples of 15 are [15, 30, 45, 60, 75, 90]. The first few multiples they share are [45, 90] making 45 the smallest multiple 9 and 15 share.

Next, convert the fractions so each denominator equals the lowest common multiple:

\( \frac{7 x 5}{9 x 5} \) + \( \frac{4 x 3}{15 x 3} \)

\( \frac{35}{45} \) + \( \frac{12}{45} \)

Now, because the fractions share a common denominator, you can add them:

\( \frac{35 + 12}{45} \) = \( \frac{47}{45} \) = 1\(\frac{2}{45}\)

By buying two shirts, Monty will save $45 x \( \frac{25}{100} \) = \( \frac{$45 x 25}{100} \) = \( \frac{$1125}{100} \) = $11.25 on the second shirt.

So, his total cost will be
$45.00 + ($45.00 - $11.25)
$45.00 + $33.75
$78.75

There are 3 3-passenger taxis available so that's 3 x 3 = 9 total seats. There are 10 people needing transportation leaving 10 - 9 = 1 who will have to find other transportation.