If the original quantity is 10 and the new quantity is 13 what is the percent increase

Acompany is testing in comparing to lightbulb designs the box plot shows the number of hours that each lightbulb design last before burning out which statement is best supported by the information of the plot

Ijust need to see how to do this. so you don’t have to answer all of them just a step by step explanation of one.

The graph below shows the line of best fit for data collected on the number of cell phones in cell phone cases sold at the local electronic store on four different days