The side length of an equilateral triangle is 5 centimeters find the length of an altitude

A. 90 degrees b. 45 degrees c. 30 degrees d. 120 degrees

Ineed with math stuff it involves graphs

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.