What vulnerable does the 4 represents in the number 487.009

At school there are 526 students and 263 are girls about how likely is it that a randomly chosen student will be a boy

Marcus and cody both leave the park at the same time, but in opposite directions. if cody travels 6 mph faster than marcus and after 4 hours they are 64 miles apart, how fast is each traveling? solve using rare times time = distance.

What is the area of a triangle with vertices at (-3 3) (-3,2) and (1,2)?