Lazy Larry has a 65 gallon aquarium . It is recommended that he change 20 % of the water each week to keep the tank clean and his fish healthy . If he changed 15 gallons of water , what percentage of the water did he change ?

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.

Secant be and cf intersect at point d inside a what is the measure of cde

Aye asap pls ! markin da brainiest too ! btw da step choices are all add, distribute, divide, n subtract