What is the opposite or additive inverse of 9.68​

Dylan and dusty plan to take weekly surfing lessons together. if the 2-hour lessons are $20 per person and they plan to spend $100 each on new surfboards, what is the maximum number of lessons the two can take if the total amount spent for lessons and surfboards is at most $480?

Acar travels at an average speed of 52 miles per hour. how long does it take to travel 299 miles

An ant travels at a constant rate of 30cm every 2 minutes. at what speed does the ant travel per minute