3,3 0.61,7: r) 2.2·6,4.0.15 1,6 • 4, 6 • 0,03 e) 2|+20:8¾ -. 0,18: 1,5 + 2,88

It appears that you've provided a series of mathematical expressions involving numbers and operations. To assist you, let’s simplify each expression step-by-step. I'll first rewrite them in a clearer format.

1. \( 3.3 \div 0.61 \times 7 \)
2. \( 2.2 \times 6.4 \times 0.15 \)
3. \( 1.6 \times 4.6 \times 0.03 \)
4. \( 2 + 20 \div 8.75 \)
5. \( 0.18 \div 1.5 + 2.88 \)

Let's calculate each one.

1. \( 3.3 \div 0.61 \times 7 \)

Calculating this step by step:

• \( 3.3 \div 0.61 \approx 5.4098 \)
• \( 5.4098 \times 7 \approx 37.8686 \)

Result: Approximately 37.87

2. \( 2.2 \times 6.4 \times 0.15 \)

Calculating this step by step:

• \( 2.2 \times 6.4 = 14.08 \)
• \( 14.08 \times 0.15 = 2.112 \)

Result: 2.112

3. \( 1.6 \times 4.6 \times 0.03 \)

Calculating this step by step:

• \( 1.6 \times 4.6 = 7.36 \)
• \( 7.36 \times 0.03 = 0.2208 \)

Result: 0.2208

4. \( 2 + 20 \div 8.75 \)

Calculating this step by step:

• \( 20 \div 8.75 \approx 2.2857 \)
• \( 2 + 2.2857 \approx 4.2857 \)

Result: Approximately 4.29

5. \( 0.18 \div 1.5 + 2.88 \)

Calculating this step by step:

• \( 0.18 \div 1.5 \approx 0.12 \)
• \( 0.12 + 2.88 = 3.00 \)

Result: 3.00

Summary of Results

1. \( 3.3 \div 0.61 \times 7 \) ≈ 37.87
2. \( 2.2 \times 6.4 \times 0.15 \) = 2.112
3. \( 1.6 \times 4.6 \times 0.03 \) = 0.2208
4. \( 2 + 20 \div 8.75 \) ≈ 4.29
5. \( 0.18 \div 1.5 + 2.88 \) = 3.00

If you have any specific questions or need further assistance, please let me know!