The weight of an object on a particular scale is 155.2 lbs. the measured weight may vary from the actual weight by at most 0.4 lbs. what is the range of actual weights of the object?

Aiden buys two bags of chips at $1.09 each and a 20 ounce soda for $1.20 at the gas station.he knows that the state tax is 5.5. how much change will he receive from a $5 bill?

Ben is three times as old as samantha, who is two years older than half of michel's age. if michel is 12. how old is ben?

According to the 2008 u.s. census, california had a population of approximately 4 × 10^7 people and florida had a population of approximately 2 × 10^7 people. which of the following is true? a. the population of florida was approximately two times the population of california. b. the population of florida was approximately twenty times the population of california. c. the population of california was approximately twenty times the population of florida. d. the population of california was approximately two times the population of florida.