Finished 20% of assignment the assignment includes 50 problems how many problems have compleated

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?

Write the rational number in lowest terms 99/-15

The number of fish in a lake can be modeled by the exponential regression equation y=14.08 x 2.08^x where x represents the year