Me to answer this plss.. a drawing uses a scale of 1/4 inch = 1 foot. a wall of a building is shown on the drawing as 6.5 inches long. how many feet long is the wall?

What are the relative frequencies, to the nearest hundredth, of the rows of the two-way table? group 1: a 15 b 45 group 2: a 20 b 25

How do you use the elimination method for this question? explain, because i really want to understand!

Hell . what are the solutions to `10x^2 - 38x - 8 = 0`? is this when i find the factors and use the numbers within the factors to determine the zeros? i hope that made sense lol