How would get get the answer 60 if both sides each equal 30? All of the same shape has to equal the same thing. For example all the squares have to equal the same thing. Thanks for your help!

Janet is mixing a 15% glucose solution with a 35% glucose solution. this mixture produces 35 liters of a 19% glucose solution. how many liters of the 15% solution is januet using in the mixture? a. 25 liters c. 28 liters b. 7 liters d. 10 liters

Will mark brainliest. when ∆rst is translated 4 units down, what are the apparent coordinates of t’?

Can someone answer this question? : )