Answer: B. $1,050 more than expected.
Step-by-step explanation:
The company originally planned to have revenue resulting from 30 customers and charging $30 for an estimated 33 hours.
Estimated revenue was;
= 30 * 30 * 3
= $2,700
However, in actuality, they sold to 20 more customers than estimated but only spent 2.5 hours each.
Number of customers = 30 + 20
= 50 customers
Actual revenue
= 50 * 30 * 2.5
= $3,750
Difference is;
= 3,750 - 2,700
= $1,050 more