PLEASE HELP! HURRY!

Simplify:

14f – 5s + 6f – 20 + 17s – 2f
A. 18f – 12s – 20
B. 20f + 12s – 20
C. 20f – 22s – 20
D. 18f + 12s – 20

What is the length and width of a 84.5 square foot rug? will mark

Ebuka's monthly rent is $750. if ebuka pays the rent late, his landlord charges 4% interest per week that the payment is late. write a function that gives the total cost r(t), in dollars, of ebuka's rent if he pays it t weeks late.

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