Chris is 3 years older than jacob. nathan is 18 years old. two years ago the sum of all their ages was 59 years old how old is jacob?

What is not true about kl and mn? what is mn? (show your work)

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.

Awindow washer cleans 42 windows in 2 hours. at this rate, how many windows did he clean in 180 minutes.