if there is one store and they are selling 10 pens for 8.99 and they are selling 25 pens for 19.75 witch one is better explian

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?

Plz i beg u asap ! what is the equation of this graphed line? enter your answer in slope-intercept form in the box.

Compare the cost of the bike trips from the two companies shown. for both the cost in a linear function of the number of days which statements is true