A square picture with a side length of 50 cm is scaled by 60% on a photocopier . The copy is then scaled by 60% again. ALL work must be shown for full credit. A. What is the side length of the second copy of the picture? B. What is the side length of the picture after it has been successively scaled by 60% 4 times?

You put $2000 in an account with a simple interest rate of 1.5%. how long does it take for the account to earn $60?

Which interval for the graphed function contains the local maximum? [–3, –2] [–2, 0] [0, 2] [2, 4]

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.