What is 10−2(x−y)=3x+1 in standard form?

Iwill make brain if you me correctly fill this out needs due today pls and send it back to me (click the link and you will get it)

In the xy-plane, if the parabola with equation passes through the point (-1, -1), which of the following must be true?

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