Coin is flipped 70 times and lands on tails 42 times. what is the relative frequency of the coin landing on tails? 30% 40% 50% 60%

Which questions would most a reader identify the author's purpose for writing? check all that apply. what type of text is this? what type of reviews did the book receive? how many copies of the book have been sold? what is the central idea? how does this text make one feel?