Need help ASAP please due at mid night

Apositive number a or the same number a increased by 50% and then decreased by 50% of the result?

What is the measure of the smallest angle in the diagram? 15 29 32 45

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.