a plumber charges a service fee of $40 plus $25 per hour labor. the function f(x) =40+25x represents the total cost after x hours of work. the plumber works a maximum of 10 hours a day. what is the range of this situation.

Answer soon(fast) 15 pts-brainliest? for right answer with small explination a restaurant catered a party for 40 people. a child’s dinner (c) cost $11 and an adult’s dinner (a) cost $20. the total cost of the dinner was $728. how many children and adults were at the party? use the table to guess and check.(i couldn't get the graph onto the question)                                8 children and 32 adults9 children and 31 adults10 children and 30 adults12 children and 28 adults

Evaluate the expression for the given value of the variable 2×(c2-5) for c=4

Evaluate cos2θ for cosθ = square root of 3/2