The mark obtained by 20 students in mathematics in the examination are given below. group the data into the class interval of length 10 and construct a frequency distribution.

table with tally marks

27, 38,25,18,9,24, 48, 15,27,35

23,45,32,16,26,39,20,33,40,37

It took alice 5 5/6 hours to drive to her grandparents' house for . on the way home, she ran into traffic and it took her 7 3/8 hours. how much longer did the return trip take? write your answer as a proper fraction or mixed number in simplest form. the trip home took __hours longer. ?

If angle b measures 25°, what is the approximate perimeter of the triangle below? 10.3 units 11.8 units 22.1 units 25.2 units

Sara has 2 2/3 cup taco meat. she needs 1/6 cup to make one taco. how many tacos can sara make with the taco meat she has?