Please give me the answers to this ASAP.

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?

Ingredient c: 1/4 cup for 2/3 serving or ingredient d: 1/3 cup for 3/4 serving which unit rate is smaller

Minixa counted 40 green cars, and 20 sliver cars in the parking lot. if the number of green cars stay the same, how many more silver cars would need to be added so the ratio of green cars to silver cars is 1 to 3?