What is the answer for y=?

What set does not contain -3 the set of all real numbers the set of all integers the set of all whole numbers the set of all rational numbers

The figure shows triangle def and line segment bc, which is parallel to ef: triangle def has a point b on side de and point c on side df. the line bc is parallel to the line ef. part a: is triangle def similar to triangle dbc? explain using what you know about triangle similarity. part b: which line segment on triangle dbc corresponds to line segment ef? explain your answer. part c: which angle on triangle dbc corresponds to angle f? explain your answer. asap

The tree filled 3/4 of a cup in 1/2 and hour at what rate does syurup flow from the tree