Which product forms from a reaction magnesium (mg) and nitrogen (N)? a. MgN2
b. MgN
c. Mg3N2
d. Mg2N3

Use the elimination method to solve the system of equations -x+5y=-4 and 4x+3y=16

Write 5(6x+4)-2(5x-2) in the form a(bx+c) where a,b and c integers and a> 1

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 : )