Calculate the monthly instalment, cash price excluding VAT, and total extra cost for a rent-to-own solar system, given specific payment options.

The table for "OPTION 1: RENT-TO-OWN" states "Pay for 7 years at R1 549 p/m".
The monthly instalment is $\boxed{\text{R1 549}}$.

2.2.2)

From "OPTION 2: CASH PRICE", the price is R78 200 (incl. VAT).

Assuming a standard VAT rate of 15%.

The cash price of the home solar system unit, excluding VAT, is $\boxed{\text{R67 000}}$.

2.2.3)

Number of months = 7 years $\times$ 12 months/year = 84 months.
Total monthly payments = R1 549/month $\times$ 84 months = R129 916.
Total rent-to-own cost = Total monthly payments + Initiation fee + Buy-out after rental period
Total rent-to-own cost = R129 916 + R782 + R7 820
Total rent-to-own cost = R138 518.

The cash price (incl. VAT) is R78 200.
Extra amount = Total rent-to-own cost - Cash price (incl. VAT)
Extra amount = R138 518 - R78 200
Extra amount = R60 318.
The extra amount Mieecke has to pay is $\boxed{\text{R60 318}}$.

2.3.1)

Mieecke's monthly taxable income is R39 275,85.
Annual taxable income = R39 275,85 $\times$ 12 = R471 310,20.

(Assuming ANNEXURE A refers to the South African tax tables for individuals 2023/2024, which are:
1 - 237 100: 18%
237 101 - 370 500: R42 678 + 26% of amount over R237 100
370 501 - 512 800: R77 362 + 31% of amount over R370 500
512 801 - 673 000: R121 475 + 36% of amount over R512 800
...)
Mieecke's annual taxable income of R471 310,20 falls into the bracket of R370 501 - R512 800.

2.3.2)

For the R370 501 - R512 800 bracket, the tax is R77 362 + 31% of the amount over R370 500.
Tax = R77 362 + 0,31 $\times$ (R471 310,20 - R370 500)
Tax = R77 362 + 0,31 $\times$ R100 810,20
Tax = R77 362 + R31 251,162
Tax = R108 613,162.

Mieecke is 45 years old, so she qualifies for the primary rebate.
The primary rebate for 2023/2024 is R17 235.
Annual tax payable = Tax - Primary rebate
Annual tax payable = R108 613,162 - R17 235
Annual tax payable = R91 378,162.
Rounding to two decimal places, the annual tax payable is $\boxed{\text{R91 378,16}}$.