100 adult women were surveyed, and each was asked how many children she had. The results were as follows: 27 without kids, 20 with 1 kid, 29 with 2 kids, 10 with 3 kids, 5 with 4 kids, and the rest with 5 kids. Find the standard deviation of the number of children in this survey result (keep two decimal points).

34 cup. a serving of vegetable soup is 23 cup. the restaurant sold 20 servings of chicken noodle soup and 18 servings of vegetable soup. how many more cups of chicken noodle soup did they sell than cups of vegetable soup?

Which is the graph of f(x) = (4)x? image for option 1 image for option 2 image for option 3 image for option 4

Aplane is taking off from bangladesh headed to new york city. at the same time, a plane from new york city is headed to bangladesh is also taking off. the plane bound to new york city is traveling at 600 mph, while the plane traveling to bangladesh is traveling at 400 mph. how far from new york city will the two planes meet if the distance between new york city and bangladesh is 8,000 miles?