A car can travel 580 miles on a full tank of gas. With four new tires, it can travel 620 miles. What is the percent change? Can you please explain? Thank you! :)

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.

Solve for b. ab + c= d b= a + old ob=allc-ch b= (d-c/a

Me i'm timed right now! there's 4 answer