Two​ trains, Train A and Train​ B, weigh a total of 441 tons. Train A is heavier than Train B. The difference of their weights is 395 tons. What is the weight of each​ train?

Match each expression with its simplified form.

Weekly wages at a certain factory are normally distributed with a mean of $400 and a standard deviation of $50. find the probability that a worker selected at random makes between $450 and $500

Heather is a cashier. she can ring up 1212 customers in 99 minutes. at this rate, how many minutes does it take her to ring up 44 customers?