Help please. Don’t have to explain

In the geometric progression –3, 12, −48… what term is 3,072?

The salesperson earns a 5% commission on the first $5,000 she has in sales. the salesperson earns a 7.5% commission on the amount of her sales that are greater than $5,000. this month the sales person had $8,000 in sales. what amount of commission, in dollars, did she earn?

Generate two equivalent fractions for each fraction. use fraction tiles or number lines . 3/4