Tairo bought US 7.00 for 91,70 Pula from a bank. Find the exchange rate in the form US 1 : m Pula. The bank charged 1% commission for the transaction. Calculate the amount of money Taiiro received.

The exchange rate is US $1 : \boxed{\mathbf{13.10 \text{ Pula}}}$.

a) ii) To calculate the amount of money Tariro received after a 1% commission:
Tariro bought US $7.00. The commission is charged on the amount being bought.

$\text{Commission} = 1\% \times \$7.00$ $\text{Commission} = 0.01 \times \$7.00$ $\text{Commission} = \$0.07$

$\text{Amount received} = \$7.00 - \$0.07$ $\text{Amount received} = \$6.93$ The amount of money Tariro received is \boxed{\mathbf{\6.93}}$.

b) To calculate the original price of the suit before the sale:
The original price was reduced by 16% to $210. This means$210 represents $100\% - 16\% = 84\%$ of the original price.

Set up the equation. $0.84 \times P = \$210$

$P = \frac{\$210}{0.84}$ $P = \$250$ The original price of the suit was \boxed{\mathbf{\250}}$.

c) To calculate the value of $P$ (the principal amount):
Given: Simple Interest ($I$) = $2010, Rate ($R$) = 3$T$) = 5 years. The formula for simple interest is$I = P \times R \times T$.

$P = \frac{\$2010}{0.03 \times 5}$ $P = \frac{\$2010}{0.15}$

$P = \$13400$ The value of $P$ is \boxed{\mathbf{\13400}}$.