What kind of consumer is mark when he eats the beef in a hamburger?

One of the benefits of a well designed ergonomic work environment is low operating costs is true or false

Joe pays ann to mow his lawn and ann mows vanna's lawn by mistake. vanna peers out her window and sees ann mowing, yet says nothing to ann about her mistake since vanna needs to have her lawn mowed. when ann approaches vanna for payment, vanna refuses, arguing that she never asked ann to mow her lawn. under these circumstances, ann can recover payment from vanna under:

Question 6 of 102 pointswhich situation shows a constant rate of change? oa. the number of tickets sold compared with the number of minutesbefore a football gameob. the height of a bird over timeoc. the cost of a bunch of grapes compared with its weightod. the outside temperature compared with the time of day