oil tank can take up 1200 l of oil. There are already 450 l of oil in the tank. The price of the oil is 81.50p per litre. Mr leonard gets 7.5% discount on the price of oil. how much discount does Mr leonard get on this purchase

Last one and the bottom answer choice is y=(x-4)^2+1 you guys!

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.

There were 25 students who answered to a survey about sports. four-fifths of them like football. how many students like football?