From a box of 12 flares, four are selected at random. If the box contains four flares that do not work of the four flares, how many would not work

What number must you add to complete the square x^2+12x=16

What are the measures of ∠a, ∠b, ∠c and ∠d? explain how to find each of the angles. measure need asap

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.