Using the graph of a pay scale below. Determine how many years of experience are necessary to make $45,000, $70,000 $60,000 $50,000 $40,000 $30,000 $20,000 $10,000 SO Less than 3 years 6 years 9 years 12 years 15 years 18 years 21 years 24 years 27 years 3 years but less but less but less but less but less but less but less but less or more than 6 than 9 than 12 than 15 than 18 than 21 than 24 than 27 years years years years years years years years View larger version of chart. View long description. O a less than 3 years O b less than 12 years c 3 years but less than 6 years O d 6 years but less than 9 years Time left for this