As a sales person, you are paid $100 per week plus a commission of $5 per sale. if you want to earn at least $275 this week, how many sales you need to make?

Aremote-controlled boat can travel at 4 feet per second in calm water. the boat traveled 48 feet with the current, and then it traveled 16 feet against the current in the same amount of time. how fast is the current?

Acircle has a radius of 12.6cm what is the exact length of an arc formed by a central angle measuring 120

What is the surface area of the sphere?