Last month, Keith ran 18 more miles than Mick ran. If they ran a total of 76 miles, how many miles
did Keith run?

What is the value of x? enter your answer in the box. photo attached.

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

Anyone? 15m is what percent of 60m; 3m; 30m; 1.5 km?