Estimate a 20% tip on a dinner bill of $161.58 by first rounding the bill amount to the nearest ten dollars.

If there are 12 moths and some have 31 days and others have 30 days how many have 28 days?

5(-9w) put expression in distributive property

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 california was approximately two times the population of florida. b. the population of florida was approximately twenty times the population of california. c. the population of florida was approximately two times the population of california. d. the population of california was approximately twenty times the population of florida.