Robert used 34 grams of iron filings in his second experiment. this is 16 grams more than twice the number of grams he used in his first experiment. how many grams of iton filings did he usein his experiment.

34=2x + 16

18=2x

x=9

Robert used 9 grams of iron filings in his first experiment.

6,250

step-by-step explanation:

to get the area, multiply 360 by 160.(57,600)

to find out how many bags of fertilizer it will take, first figure out how many square feet one bag can hold. divide 1000 by 8(125) to get the unit rate(how many square feet one pound of fertilizer can hold)and multiply it by 50(6250). if i haven't made a mistake, that is the answer.

h= 12 inches

step-by-step explanation: