Please Explain the steps!

5. Given a graph below What are the neighbors in the minimum spanning tree (MST) of the node and the node Y__ By how much the weight of edge (Y,E) should be decreased to make this edge added to MST? At least by _ . Out of MST will go the edge By how much the weight of edge (I,F) should be increased to push this edges out of MST? At least by Inside MST will go the edge Rl 22 21_3 21 35 @ 10 16 By 42 A 15 VI 9 44 29 FY 8 43