Final answer:
Tina would make approximately $2500 in 5 days.
Step-by-step explanation:
Tina's Beauty Salon charges $10 per haircut. If the salon has 52 visitors seeking haircuts per day, the estimated income for Tina in 5 days can be calculated by multiplying the number of visitors by the price per haircut and then multiplying by 5. Rounded to the nearest ten, it would be:
$10 x 50 visitors x 5 days = $2500.