Sorry for so much questions but help

Find equation of line with slope equals 8 and passing through (6,53)

What is the solution to the equation 9^(x+1) =27

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?