Andys total bill for lunch is 20 dollars. the cost of the drink is 15 percent of the total bill and the ref is the cost of the food. what percent of the total bill did andys food cost? what was the cost of his food?

The head librarian at the library of congress has asked her assistant for an interval estimate of the mean number of books checked out each day. the assistant provides the following interval estimate: from 740 to 920 books per day. what is an efficient, unbiased point estimate of the number of books checked out each day at the library of congress?

Write two subtraction equations that are equivalent to 5 + 12 = 17.

The chs baseball team was on the field and the batter popped the ball up. the equation b(t)=80t-16•16+3.5 represents the height of the ball above the ground in feet as a function of time in seconds. how long will the catcher have to get in position to catch the ball before it hits the ground? round to the nearest second