Can someone help with this math pls, im confused and I don't know ​

The last time i bought this product , it cost $20.00 but it looks like it cost 29. 60 today? what is the increase

If the wwight of a package is multiplied by 7/10 the result is 65.8 find the weight of the package

Suppose that an airline uses a seat width of 16.516.5 in. assume men have hip breadths that are normally distributed with a mean of 14.414.4 in. and a standard deviation of 0.90.9 in. complete parts (a) through (c) below. (a) find the probability that if an individual man is randomly selected, his hip breadth will be greater than 16.516.5 in. the probability is nothing. (round to four decimal places as needed.)