Which sentence does not contain any punctuation errors?

a. she is back from her grandmother's; in fact, there she is now.

b. she is back from her grandmother's, in fact, there she is now.

c. she is back from her grandmother's in fact; there she is now.

d. she is back from her grandmother's, in fact there she is now.

Describe how subjectivity and other factors (monetary and non-monetary) affect a person's calculation of cost and benefit. give an example of a cost-benefit analysis you have performed. use complete sentences and appropriate economic terms and concepts learned in this course.

Desalination is expensive because it requires

Skill check questions rearrange the paragraphs below into the correct sequence. that's because engineers on the ultraclean project have invented a self-cleaning, antibacterial metal surface that repels water with an intricate layer of laser-engraved valleys. when it rains, the lotus does not become damp; the water simply trickles off in fat droplets, taking any bugs and dirt with it. the drudgery may not be around much longer, however, if a team of italian scientists has anything to do with it “it's simply an amazing plant,” concluded professor luca romoli, leader of the project, “and we've succeeded in mimicking it. magnifico! ” few tasks in life hold less joy than scrubbing the ghost of somebody else’s porridge from a saucepan. the starting point for the research was the leaves of the lotus flower.