2x + 20 = -3x-25
this is due in 20 minutes!

This is a map of the mars exploration rover opportunity predicted landing site on mars. the scale is 1cm : 9.4km. what are the approximate measures of the actual length and width of the ellipse? i mostly need to know how to set it up : )

Which strategy is used by public health to reduce the incidence of food poisoning?

Varies inversely with x. if y=8.5 when x=-1 find x when y=-1