If something takes 12 minutes to do and you have to do it 320 times how long would it take

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

Find the solution of system of equation y= x-4 y=4x+2

Which graph represents the equation y =4x