PLEASE HELP!!! The scores on the SAT test are normally distributed with =500 and =100. Your best friend in this class scored 450 in math and 480 in verbal. What are his z-scores for each test?

There is diarrhea on the floor. what do i do? my mum gonna see that i diarrhea on the floor! * don't report, i'm serious! *

To determine the number of deer in a forest a forest ranger tags 280 and releases them back

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