Please help me I really need a friend :). Pedro's Plumbing Service charges a flat rate for every service call, plus an additional amount based on an hourly rate for repairs. The graph below shows this relationship. Identify the hourly rate and initial cost of the service. ​

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

Whats are the trickiest steps to do when adding or subtracting rational expressions? how does knowledge of rational numbers u in adding and subtracting rational expressions?

Which expression is a perfect cube? a. x8 b. y24 c. m28 d. x64