What are the solutions of the following system? x+y = 25 | 2x+y= -5 (0,-5) and (-5,5) (0,-5) and (5, -15) (0, -5) and (-4, 3) (0, -5) and (4, -13)

Asphere has a diameter of 10 in. what is the volume of the sphere?

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 : )

My final challenge question of the day! i have no tests, nothing to do this for, it is simply giving away free points for a you tube video! so 50 free points for answering the most simple question ever! here is the key to getting brainiest for this question. answer in under 50 seconds. you think you can do it. i think you can. here is the question: 1x2= i know! easiest question ever! and yes! if you answer this question, you will be on you so come on and get the free 50 while you can!