Answer:
possibly z2-6 so try the third one
Step-by-step explanation:

24 is the numerical coefficient
1.06 is the base of the power with exponent t
In order to figure out what number 1500 is 5% of, take 1500 and divide it by 5% (0.05). The answer is the salesman would have to sell $30,000 to make $1500 in commission.