for question 1 the answer is 34
for question 2 is 36 but for 5 and 7 I can't really answer the question because I can't see all the number so anyways I will just tell you how to do it.
for the range, you subtract the highest number from the lowest and to do that you can order the numbers from least to greatest. and for the median you have to order from least to greatest then you have to to see if there are odd results if there are odd results then you have to find the middle number and that would be your answer but if there is an even result then you have to add up the two central numbers to find the mean. hope this helps.
