Whats this answer to this problem its word problems algebra?

can you please answer theses problems please. 1st, find three consecutive odd integers such that the same of the smallest and 4 times the largest is 61 . next juan is 8 years older than his sister in 3 year he will be twice as old as she will be the how old are they now. next, c and y candy company mixes candy that cost $6.00 per kg with candy that costs $ 4.50 per kg how many killograms of each are needed to make a 3kg bag that cost $15.00 last problem im sorry im asking for much but its for a test and if i p it i move onto geometry. how much water must be added to a 12 grams of a 90% iodine solution to produce a 25% iodine solution. thanks if you can anser that will be great if this is too much plz leave your answers but showing work will help me more