Which of the following equations is in standard form?
a. y=1/2x
b. y=1/2x-3
c. 4y-1=1/2x-3
d.2x+3y=14

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 : )

Yo need asap pls ! markin da brainiest too !

6cm10 cma conical paper cup has dimensions as shown in the diagram. how much water can the cup hold when full?