46. A set of stairs needs to have a ratio of 7:11 (rise to run). The vertical height from the first floor to the basement floor is 105 inches, How many steps will this set of stairs have?

20 ! need which shows a difference of squares? 10y^2-4x^2 16y^2-x^2 8x^2-40x+25 64x^2-48x+9

What is another way to express 36 +32

The birth weights of newborn babies in the unites states follow in a normal distrubution with a mean of 3.4 kg and standard deviation of 0.6 kg. reaserches interested in studying how. children gain weights decide to take random samples of 100 newborn babies and calculate the sample mean birth weights for each sample