1) If a drug has a concentration of 386 mg per 10 mL, how many mL are needed to give 1.8 grams of the drug? Round your answer to the nearest tenth of a mL.

2) If you use 26 gallons of gas a week to get to school, how many pounds of CO2are produced?Round you answer to the nearest tenth.

3) If a car gets 25 miles to the gallon on average, how manygallons of gasolinewould be burned when that car travels 255 miles?Round you answer to the nearest tenth.

4) If a car gets20miles to the gallon on average, how manypounds of CO2would be burned when that car travels 246 miles?Round you answer to the nearest tenth.

5) How much CO2is produced from ironing clothes for 1.8 hour a week for 7 weeks?Round you answer to the nearest tenth.

6) If someone sleeps with an electric blanket that uses 243 watts of electricity and turn it on for 11 hours each night.How manykWhare used by using the blanket each night?Round your answer to the nearest tenth.

7) If someone sleeps with an electric blanket that uses 174 watts of electricity and turn it on for 4 hours each night.How manypounds of CO2are used by using the blanket each night?Round your answer to the nearest tenth.

8) Suppose an air conditioner is left on stand-by 24 hours a day for 302days.How many pounds of CO2would be produced?Round you answer to the nearest tenth.