Abag of chips contains 145 calories per serving. each bag of chips contain 3 servings. how many calories are in 2 bags of chips? 97 calories 290 calories 435 calories 870 calories

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?

Im so bad at fractions they are not my best math thing to work on

Josie buys a pair of boots that retail for $52.00 dollars, however they are currently on sale for 25% off how much does josie pay for the boots if there is also a 6% sales tax on them