Respuesta :

For 6 plug in each of the answers for x and see if the product =3.2
Answer for 6: A
For 7 you turn the percentage into a decimal and multiply that by the number in which you know and you find the answer.
Answer for 7: D 
6) 2.65,  3.2/1.25=2.65
7)292.50
8)$72
9)$702