Philip wants to know the weight of a book to within half a gram. His weighing scales only weigh to within 10 grammes. What is the smallest number of identical copies of this book that Philip should weigh together to be able to do this?

The ratio of two numbers is 5 to 4. the sum of the numbers is 99. what number is the greater of the two numbers?

Astore manager records the total visitors and sales, in dollars, for 10 days. the data is shown in the scatter plot. what conclusion can the store manager draw based on the data? question 3 options: an increase in sales causes a decrease in visitors. an increase in sales is correlated with a decrease in visitors. an increase in visitors is correlated with an increase in sales.

Valentina is subtracting from . she finds the lcd to be 15y2. what is valentina's next step?