Assume a normal distribution & that the average phone call in a certain town lasted 7 minutes with a standard deviation of 1 minute. What percentage of calls lasted less than 6 minutes?

How many different triangles can be constructed with the angle measurements of 134° 10° and 36° ?

Antonia and carla have an equivalant percentage of green marbles in their bags of marbles. antonia has 4 green marbles and 16 total matbles. if carla has 10 green marbles , how many total marbles does carla have

!! 10 ! a westbound jet leaves central airport traveling 635 miles per hour. at the same time, an eastbound plane departs at 325 miles per hour. in how many hours will the planes be 1900 miles apart?