Find the area of a triangle with the following sides, a=42 cm b=31cm c=51 cm

: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?

What is the distance between point a and b

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.