Aman weighs 78 kg and his two sons weighing 45 kg each were stranded on a river crossing. all they had to cross the river was a small boat, but it could only hold 90 kg. how did the man and his sons cross the river?

In the rectangle below ac=30 units what is de

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.

:24% of students in a class are girls. if there are less than 30 students in this class, how many students are there? how many girls are there?