The formula for rust can be represented by fe1 0 3 • calculate the grams of fe are present in 30. 0 mg of the compound?.

sum= when you add is how much the whole amount is

distance= when you use angles and it means how far it goes

step-by-step explanation:

2/3=10/15

1/5=3/15

10+3=13/15

2 13/15 is the answer

-3(b-8)-5=9(b+2)+1

distribute

-3b+24-5=9b+18+1

add/ subtract

-3b+20=9b+19

20-19= 1

-3b+1=9b

9b+3b= 12b

1=12b

1 divided by 12 = 1/12

answer: 1/12 = b