What is the product in scientific notation? (3.5x10^-5)(3x10^-10)

Hurry which expression is equivalent to 3√x^5y?

Gabrielle's age is two times mikhail's age. the sum of their ages is 84. what is mikhail's age?

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.