A supervisor finds the mean number of miles that the employees in a department live from work. He finds x Overbar = 29 and s = 3.6

Let w=23 . what is the value of w + 45 ?

Acar started driving from city a to city b, distance between which is 620 miles, at a rate of 60 mph. two hours later a truck left city b and started moving towards city a at a rate of 40 mph. how many hours after the truck's departure will the two meet?

In triangle △abc, ∠abc=90°, bh is an altitude. find the missing lengths. ah=4 and hc=1, find bh.