4 days ago, Emily blew up a ballon to a radius of 5 cm. Since then the ballon has lost air and decreased by 0.5 cm each day. What is the ratio of the current volume of the ballon to the volume of the ballon 4 days ago

The table represents a function f(x). what is f(3)? a.-9 b.-1 c.1 d.9

3.17 scores on stats final. below are final exam scores of 20 introductory statistics students. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 57, 66, 69, 71, 72, 73, 74, 77, 78, 78, 79, 79, 81, 81, 82, 83, 83, 88, 89, 94 (a) the mean score is 77.7 points. with a standard deviation of 8.44 points. use this information to determine if the scores approximately follow the 68-95-99.7% rule. (b) do these data appear to follow a normal distribution? explain your reasoning using the graphs provided below.

The zoo collects $9.60 for every 24 tickets sold. how much will be collected for 400 tickets?