Use the line of best fit to determine the x-value when the y-value is 190.

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.

Which expression gives the exact value of x?

Hundred and tens tables to make 430 in five different ways