Answer:
29.63
Step-by-step explanation:
Since there is already 28.3 grams in the container, you just have to subtract 57.93 and 28.3 to get your answer because 57.93 is the total.
9.125*x^2 is 100000 times greater than 9.125*10^(-3).
Note that (10^5)(9.125*10^(-3) = 9.125*10^2.
18 2/5 = 92/5 = 18.4 as a decimal;