Find the value of x.
64
100
XE

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?

What is the rate of change of a line that passes through (2,-5) and (6,-2)?

Inez has a phone card. the graph shows the number of minutes that remain on her phone card a certain number of days.