Explain how to determine if a number is a solution of the equation. n + 6 = 33 for n = 27

2y= 3 2 x−2 y = − 1 3 x + 1 y=− 3 1 x+1

The weight of an object in the water is 7% of its weight out of the water. what is the weight of a 652g object in the water?

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 : )