Write an expression for the perimeter of the triangle shown below: A). 4.5x + 29

B). 4.1x − 29

C). 4.5x − 29

D). 4.1x + 29

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

An octagonal prism has jow many lateral faces?

Tatiana reads 40 pages of her book every night for x number of nights. write an expression that shows the number of pages she has read