Which number is not in scientific notation?​

Janet drove 300 miles in 4.5 hours. write an equation to find the rate at which she was traveling

What is the answer to this problem? ignore the work. what is the correct answer?

The correlation between height and weight for a certain breed of plant is found to be 0.75. what percentage of the variability in plant weight is not explained by height? 1-0.75 = 0.25 or 25% (b) )^2 = 0.5625 or 56.25% (c) )^2 = 0.4375 or 43.75% (d) (1 - 0.75)^2 = 0.0625 or 6.25%