What is the distance between them

Order the numbers in each list from least to greatest. 0, |−14|, 13, −12, |−16|, 17

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?

Find the values of y: 3y^3(y^2+ 2/3y)=0