Use scientific notation to estimate the number of inches in 1,225 miles. Include all calculations in your final answer. 1 inch ≈ 1.578 × 10 -5 miles.

Dr.cooper just started an experiment. he will collect data for 8 days. how many hours is this

Which values for a and b will create infinitely many solutions for this system of equations? ax-y=8 2x+y=b

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?