What is this? 2300÷54×22-6

Also this is the best pic I ever took of my sis and our pup

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

The value of the expression 16-^3/4 8 1/8 -6 6 1/40 1/64

On the first of each month sasha runs a 5k race she keeps track of her times to track her progress her time in minutes is recorded in the table