He equation of a line is y=2/3 x + 5. what is an equation of the line that is perpendicular to the given line and that passes through the point (4,2)?

Find the difference (8ab+a+2) - (3ab+6)

What is the absolute value of the complex number -4-sqrt2i

Ascientist has discovered an organism that produces five offspring exactly one hour after its own birth, and then goes on to live for one week without producing any additional offspring. each replicated organism also replicates at the same rate. at hour one, there is one organism. at hour two, there are five more organisms. how many total organisms are there at hour seven? 2,801 19,531 19,607 97.655