Determine the equation of the line that is perpendicular to the given line, through the given point. y=x-1; (-6, 2) (please explain how to solve this, i'm a little stuck)

Given the choice between receiving $1.000.000 in one month or a single penny-doubled everyday for the period of one month; which option would you choice? show your work to support your answer. (assume that 1 month=30 days)

If the graphs of the linear equations in a system are parallel, what does that mean about the possible solution(s) of the system? a. there are infinitely many solutions. b. there is no solution. c. there is exactly one solution. d. the lines in a system cannot be parallel.

Which expression is equivalent to sq-80