A piece of string is 325 centimeters long. You need the string to be 1 1/4 meters long. how many centimeters should you cut off?

Any is very appreciated! (picture is provided below)not sure how to do this at all won't lie

John used linear combination to solve the system of equations shown. he did so by multiplying the first equation by -3 and the second equation by another number to eliminate the x-terms. what number did jonas multiply the second equation by? 4x-6y=23x+5y=11

Which of these numbers of simulations of an event would be most likely to produce results that are closest to those predicted by probability theory? 15, 20, 5, 10