You are working as a car salesperson at a motor shop. You earn a 2% commission on every car sale, in addition to your wage of $20 an hour. After a 8 hour day, your car sales totaled to $25,000. What are your total earning for that day? (Show Work.)

A: 500
B: 160
C: 660

The two square pyramids are similar. find the total volume of both pyramids if the ratio of their surface areas is 9/16

Tatiana wants to give friendship bracelets to her 32 classmates. she already has 5 bracelets, and she can buy more bracelets in packages of 4. write an inequality to determine the number of packages, p, tatiana could buy to have enough bracelets.

Me with this assignment ! i only partially understand, so explain. also it's a work sample. at the championship bike race, steve and paula were fighting for first place. steve was 175 feet ahead of paula and had only 300 feet left to go. he was very tired and was going only 9 feet per second. paula was desperate to catch up and was going 15 feet per second. who won the bike race and by how far did she/he win?