If a sampling plan required 5% of the parts to be inspected in 1000 parts? can someone explain the steps on how to do this i have a test coming up that will ask a similar question

Me find the value of x each figure.

The marked price of an article is 25% above its selling price and the cost price is 30% less than its marked price . find the discount percent and gain percent. only a brainlest can solve it i will mark you brainlest

Cody was 165cm tall on the first day of school this year, which was 10% taller than he was on the first day of school last year.