Is this correct? Question: Which expressions are equivalent to the following, check all that apply.

The graph of a line gets what as the value of the slope gets bigger

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 standard deviation for a set of data is 5.5. the mean is 265. what is the margin of error?