Ms. ramos gives 8% of her income to charity. ms ramos' monthly income is $2000. how much does she give to charity each month

Can somebody me out with this question

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?

The graph shown is the graph of which function?