I was wondering if someone could help with these problems? I am not sure how to approach the nested summations. Could you please explain how and show the steps to solve it. Any help is appreciated, Thank you!

Question 4. Solve each summation below, showing sufficient work. Your final answer should be simplied completely to a single integer or fraction in lowest terms (except in the case of very large exp onents) . 8 4 3 (a) Z Z 2013+)? = i=4j=2k=1 57 2 (@2201 +0: i=2j=4 100 k (c) 2(3k+3 + 1): k=1 1000 k d 5 = \"31242 ) 25 k (e) E 4(4) = k=16 (f) 3 + 12 48 + 192 768 + 3072 + 12582912 = (g) 5 + 10 + 15 +...+ 1005 = (l1)81+ 27+9 + 3+...+%=