The amount of daily time that teenagers spend on a brand A cell phone is normally distributed with a given mean Mu = 2. 5 hr and standard deviation Sigma = 0. 6 hr. What percentage of the teenagers spend more than 3. 1 hr? 5% 10% 16% 32%.

Translate this phrase into an algebraic expression. 21 more than twice goran's savings use the variable g to represent goran's savings. need to know fast.

10 ! a train starts from grand city and travels toward belleville 388 miles away. at the same time, a train starts from belleville and runs at the rate of 47 miles per hour toward grand city. they pass each other 4 hours later. find the rate of the train from grand city.

Solve 2x2 + 8 = 0 by graphing the related function. there are two solutions: . there are no real number solutions. there are two solutions: 2 and -2