42 customers increased by 50%
63
To calculate the 50% increase in 42 customers, follow these steps:
1. Convert the percentage increase to a decimal. Since 50% is equivalent to 0.50, divide it by 100: 50% / 100 = 0.50.
2. Multiply the original number (42) by the decimal representation of the percentage increase: 42 * 0.50 = 21.
3. Add the result of the multiplication to the original number of customers: 42 + 21 = 63.
Therefore, a 50% increase in 42 customers would be 63 customers.