Find the distance between the numbers 540 and 580 on the number line

Rearrange the formula c^2 = a^2 + b^2 for b

Suppose i flip two identical coins. what is the probability that i get one head and one tail?

He weights of 2-pound bags of best dog food are approximately normally distributed with a given mean  and standard deviation  according to the empirical rule, what percentage of the bags will have weights within 3 standard deviations of the mean? 47.5%68%95%99.7%