If one plane is flying 40 mph and another plane is flying 100 mph, and they are 200 miles apart and flying directly toward each other, in how long will the planes
meet2

In the diagram, the ratio of ab to ae is (1/2) . what is the ratio of the length of to the length of ?

Scrub a dub toothbrushes are $4.00 each. there is a 10% discount, but there is also a 6% sales tax after the discount is applied. what is the new price after tax? round to the nearest penny

Thompson and thompson is a steel bolts manufacturing company. their current steel bolts have a mean diameter of 127 millimeters, and a variance of 36. if a random sample of 35 steel bolts is selected, what is the probability that the sample mean would differ from the population mean by greater than 0.5 millimeters? round your answer to four decimal places.