My friend Elentire bought 8 hopts and 1 boondins for a total cost of $45. My friend Lirn bought 6 hopts and 4 boondins for a total cost of $50. Write a system of equations, in standard form, modeling the relationship between cost of hopts (x) and cost of bonndins (y).

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 y-intercept of the line given by the equation

What is the value of f(x) = 2.2 for f(-2)?