Use functions a(x)= 4x+9 and b(x)= 3x-5
a: find (a+b) (x)
b: find (a-b) (x)
c: find a[b(x)]

, this is my final and i need to pass to graduate next week! i genuinely have no idea what i am doing

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.