A car salesperson makes 25% commission on each car sold. If the salesperson just sold a vehicle for $42,000, how much in commission was made?

Our goal is to collect email addresses from 60% of customers who purchase a product." so that means if i talk to 95 customers, i need to persuade to provide an email address?

The marriott family bought a new apartment three years ago for $65,000. the apartment is now worth $86,515. assuming a steady rate of growth, what was the yearly rate of appreciation? what is the percent of the yearly rate of appreciation?

45% of the trees in a park are apple trees. there are 27 apple trees in the park. how many trees are in the park in all?