Acompany manufactured 1.8 x 10^9 light bulbs last year. each light bulb is checked for defects before packaging. if 2% were found to have defects, how many had defects, write your answer in scientific notation.

Total number of bulbs that were manufactured last year = 

Percentage of defective bulbs = 2%

Number of defective bulbs = Percentage of defective bulbs x Total number of bulbs.

Using the values, we get:

Number of defective bulbs = 


Thus,  defective bulbs were manufactured last year

The discount is 8.70 . you dont tell us the percent of tax added so there is no way to find out, unless i'm not seeing anything. without tax its 37.70