Geometry question!
9. a design on the surface of a balloon is 5 cm wide when the balloon holds 71 cm of air. how much air does the balloon hold when the design is 10 cm wide? explain the method you use to find the amount of air.

Given a normal distribution with µ =50 and σ =4, what is the probability that 5% of the values are less than what x values? between what two x values (symmetrically distributed around the mean) are 95 % of the values? instructions: show all your work as to how you have reached your answer. don’t simply state the results. show graphs where necessary.