## ANSWER:

Since the container is in equilibrium, the pressure at A, B, and C must all be equal. This is because the pressure at a point in a fluid is due to the weight of the fluid above it. The pressure at D is equal to atmospheric pressure, since it is in contact with the air.

To find the pressure at A, B, and C, we can use the following equation:

```
P = ρgh
```

where:

- P is the pressure (Pa)
- ρ is the density of the fluid (kg/m³)
- g is the acceleration due to gravity (9.81 m/s²)
- h is the height of the fluid column above the point (m)

The density of water is 1000 kg/m³, so the pressure at A, B, and C is:

```
P = 1000 kg/m³ * 9.81 m/s² * 1 m = 9810 Pa
```

Converting this to #/ft², we get:

```
P = 9810 Pa * 0.02036 #/ft² = 200 #/ft²
```

The pressure at D is equal to atmospheric pressure, which is approximately 14.7 #/in². Converting this to #/ft², we get:

```
P = 14.7 #/in² * 144 in²/ft² = 2116 #/ft²
```

Therefore, the answers are:

- A: 200 #/ft²
- B: 200 #/ft²
- C: 200 #/ft²
- D: 2116 #/ft²

In pascals, the pressures are:

- A: 9810 Pa
- B: 9810 Pa
- C: 9810 Pa
- D: 211600 Pa