Which of these is a step in constructing and inscribed regular hexagon using technology?

create circle b with radius ab.
draw line fg.
draw point e anywhere on segment db.
mark the points of intersection between circle a and line ab.

Rewrite the following without an exponent. (5/8)-1

In simplified exponential notation, the expression a^2•a^-3•a 1/a 0

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?