Answer:
Step-by-step explanation:
You might take 50% of 70, which would give you 35: 0.50(70) = 35
If you want greater accuracy, multiply 0.52 by 70 instead of 71:
0.52(70) = 36.4. (It's less work than multiplying 0.52 by 71).
Actual value: 0.52(71) = 36.92