In a proportion , where x can’t equal 0 and y can’t equal 0, which of the following are equivalent to 5/8 =x/y a. 5/x = 8/y b. 5+8/8 = x+y/y c. 8/5 =y/c d. they are all equivalent

Atrain leaves little? rock, arkansas, and travels north at 90 kilometers per hour. another train leaves at the same time and travels south at 80 kilometers per hour. how long will it take before they are 680 kilometers? apart?

Urgent? will give brainliest to the first correct answer what is the area of the figure?

What number gives you a irrational number when added to 2/5