Is 8/20 and 20/80 proportional or not proportional to correctly classify each pair of ratios

The letter tiles shown below are in a bag. whiteout looking i am going to draw one tile. what are my chances of drawing g?

3. solve the given inequality and graph the solution on a number line.

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.