If Trisha has 3 block periods for 90 minutes each day and 4 regular seconds periods for 50 minutes each school day, how many hours of class does she have per day? Round to the nearest tenth of an hour if needed.

What is not true about kl and mn? what is mn? (show )

Human body temperatures have a mean of 98.20° f and a standard deviation of 0.62°. sally's temperature can be described by z = 1.4. what is her temperature? round your answer to the nearest hundredth. 99.07°f 97.33°f 99.60°f 100.45°f

21 type the correct answer in the box. use numerals instead of words. if necessary, use / for the fraction bar. the solution set of n2 - 14n = -45 is { (separate the solutions with a comma)