3.572 in scientific Notation

How can you find the conditional probability of a given b as the fraction of b’s outcomes that also belong to a, and interpret the answer in terms of the model? i just need a good explanation

Find the slope and the y-intercept if there's one and the equation of the line given these two points( 3, 2) and( 3, -4)

Factor x2 – 8x + 15. which pair of numbers has a product of ac and a sum of what is the factored form of the