On average, earth's crust contains about 8.1% aluminum by mass. If a standard 12-ounce soft drink can contains approximately 15.0g of aluminum, how many cans could be made from one ton of the Earth's crust?

4900

1 ton = 2,000 pounds.

2,000 pounds = about 907,185 grams. You can go through the conversion. Repost if you need some help with that.
g Al = 907185*0.081 = ??
15.0 g/can x #cans = 907185*0.081
Solve for #cans.

5400 cans

1000 kg in 1 metric ton
1000 g in 1 kg
times 8.1
divided by 15 grams per can

15000 cans my dudes

4909

12. On average, Earth’s crust contains about 8.1% aluminum by mass. If a standard 12-ounce soft drink can contains approximately 15.0 g of aluminum, how many cans could be made from one ton (1000 kg) of the Earth’s crust?

5.1x10^3 cans