Isaiash puts a 10 gram weight on a pan balance. how many 1gram weights does he need to balance the scale?

Inez has a phone card. the graph shows the number of minutes that remain on her phone card a certain number of days.

Answer asap evaluate 4-0.25g+0.5h4−0.25g+0.5h when g=10g=10 and h=5h=5.

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 : )