Rita earns $10 per hour. she puts 5% of her earnings in savings. write an inequality to find how many hours h rita must work to save at least $25.

What is the standard deviation of the following data set rounded to the nearest tenth? 3, 17, 18, 15, 12, 21, 9

Marcus and cody both leave the park at the same time, but in opposite directions. if cody travels 6 mph faster than marcus and after 4 hours they are 64 miles apart, how fast is each traveling? solve using rare times time = distance.

If private savings 'v' = 0.75s and total savings 's' equals $4.20 billion, solve for public and private savings.