Show how to make a ten to fund 12-4 write the number sentence

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?

Average acceleration: i have no idea how to do this.

The fraction 7/9 is equivalent to a percent that is greater than 100%. truefalse