Using the provided map, answer the following questions: 1.7.1 Calculate the distance from Pretoria to Nottingham Road. 1.7.2 Calculate the distance for a return trip from Harrismith to Pretoria. 1.7.3

The map shows distances from Pretoria on the right side of the route and distances from Durban on the left side of the route.
To find the distance between Pretoria and Nottingham Road, we use the values on the right side, which represent the cumulative distance from Pretoria.
Distance from Pretoria to Nottingham Road is 445 km.

The correct option is B.

To find the distance for a return trip from Harrismith to Pretoria, first find the one-way distance.
Using the right side of the map (distances from Pretoria), the distance from Pretoria to Harrismith is 268 km.
Therefore, the distance from Harrismith to Pretoria is also 268 km.
A return trip means traveling this distance twice:

$$\text{Return trip distance} = 2 \times \text{Distance (Harrismith to Pretoria)}$$ $$\text{Return trip distance} = 2 \times 268 \text{ km}$$ $$\text{Return trip distance} = 536 \text{ km}$$

The correct option is A.

To determine the total distance from Durban to Villiers, we use the values on the left side of the map, which represent the cumulative distance from Durban.
Distance from Durban to Villiers is 440 km.

The correct option is B.

To convert millilitres (ml) to litres (L), we use the conversion factor $1 \text{ L} = 1000 \text{ ml}$.
To convert 750 ml to litres, divide by 1000:

$$750 \text{ ml} = \frac{750}{1000} \text{ L}$$ $$750 \text{ ml} = 0.75 \text{ L}$$

Final Answers:
1.7.1. The correct option is B.
1.7.2. The correct option is A.
1.7.3. The correct option is B.
2.1.1. $750 \text{ ml} = \boxed{0.75 \text{ L}}$