Answer:
x=10
Step-by-step explanation:
x^2 - 10 - (9x) = 0
x^2 - 9x - 10 = 0
(x - 10) + (x + 1) = 0
x= 10
x = -1
2.02 is what i got
$633,493
(1000 mg) / (1.5 (cm cubed)) =
666.666667 kg / m3
