Abird is 4 meters from the ground. the bird is 74 cm higher from the ground than the squirrel that is sitting in a tree. how far from the ground is the squirrel?

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?