I need a word problem for this system of equation y=-80x+300. and I also need to explain the initial value and discuss the rate of change. so if anyone could help I would appreciate.

Write an expression that has three terms and simplifies to 4x - 7. identify the coefficient(s) and constant(s) in your expression

Logan wants to know how many skateboards have defective parts. he inspects 20,000 skateboards and keeps track of the number of defects per board. use his probability distribution table to find the expected value for defects on a skateboard.

Valentina is subtracting from . she finds the lcd to be 15y2. what is valentina's next step?